diff --git a/.gitattributes b/.gitattributes
index dc3ded845e7..9effe104a83 100644
--- a/.gitattributes
+++ b/.gitattributes
@@ -518,6 +518,7 @@ src/emu/devcb.h svneol=native#text/plain
 src/emu/devconv.h svneol=native#text/plain
 src/emu/devintrf.c svneol=native#text/plain
 src/emu/devintrf.h svneol=native#text/plain
+src/emu/devtempl.h svneol=native#text/plain
 src/emu/drawgfx.c svneol=native#text/plain
 src/emu/drawgfx.h svneol=native#text/plain
 src/emu/drawgfxm.h svneol=native#text/plain
diff --git a/src/emu/devtempl.h b/src/emu/devtempl.h
new file mode 100644
index 00000000000..a722f86c4c0
--- /dev/null
+++ b/src/emu/devtempl.h
@@ -0,0 +1,275 @@
+/***************************************************************************
+
+    devtempl.h
+
+    Template include for defining devices.
+
+    Copyright Nicola Salmoria and the MAME Team.
+    Visit http://mamedev.org for licensing and usage restrictions.
+
+****************************************************************************
+
+	Typical usage is as follows:
+	
+static const char *DEVTEMPLATE_SOURCE = __FILE__;
+
+// for a primary device....
+#define DEVTEMPLATE_ID(p,s)				p##devicenameprefix##s
+#define DEVTEMPLATE_FEATURES			DT_HAS_xxx | DT_HAS_yyy | ...
+#define DEVTEMPLATE_NAME				"Device Name String"
+#define DEVTEMPLATE_FAMILY				"Device Family String"
+#define DEVTEMPLATE_CLASS				DEVICE_CLASS_xxxx
+#include "devtempl.h"
+
+// for a derived device....
+#define DEVTEMPLATE_DERIVED_ID(p,s)		p##derivednameprefix##s
+#define DEVTEMPLATE_DERIVED_FEATURES	DT_HAS_xxx | DT_HAS_yyy | ...
+#define DEVTEMPLATE_NAME				"Derived Name String"
+#include "devtempl.h"
+
+****************************************************************************
+
+	Parameters are as follows:
+	
+	DEVTEMPLATE_ID(p,s) - required - macro to produce device function and
+		type names with a prefix of 'p' and a suffix of 's'
+	
+	DEVTEMPLATE_FEATURES - required - bitmask consisting of one of the
+		DT_HAS_* flags, indicating which standard-named callbacks or
+		pointers are specified by this device (everything else is assumed
+		to be NULL, which is the default)
+	
+	DEVTEMPLATE_NAME - required - a string describing the device
+	
+	DEVTEMPLATE_FAMILY - required - a string describing the device family
+		name
+	
+	DEVTEMPLATE_STATE - optional - the name of the device's state 
+		structure; by default, this is assumed to be 
+		DEVTEMPLATE_ID(,_state)
+	
+	DEVTEMPLATE_CLASS - optional - the device's class (default is
+		DEVICE_CLASS_PERIPHERAL)
+	
+	DEVTEMPLATE_VERSION - optional - the device's version string (default
+		is "1.0")
+	
+	DEVTEMPLATE_CREDITS - optional - the device's credit string (default
+		is "Copyright Nicola Salmoria and the MAME Team")
+	
+	DEVTEMPLATE_INLINE_CONFIG - optional - the name of the device's
+		inline configuration structure; by default, it is assumed the
+		device does not have any inline configuration
+
+***************************************************************************/
+
+
+/* flag bits for DEVTEMPLATE_FEATURES */
+#define DT_HAS_RESET			0x0001
+#define DT_HAS_STOP				0x0002
+#define DT_HAS_EXECUTE			0x0004
+#define DT_HAS_NVRAM			0x0008
+#define DT_HAS_VALIDITY_CHECK	0x0010
+#define DT_HAS_CUSTOM_CONFIG	0x0020
+#define DT_HAS_ROM_REGION		0x0040
+#define DT_HAS_MACHINE_CONFIG	0x0080
+#define DT_HAS_INLINE_CONFIG	0x0100
+
+
+/* verify core stuff is specified */
+#ifndef DEVTEMPLATE_ID
+#error DEVTEMPLATE_ID must be specified!
+#endif
+
+#ifndef DEVTEMPLATE_FEATURES
+#error DEVTEMPLATE_FEATURES must be specified!
+#endif
+
+#ifndef DEVTEMPLATE_NAME
+#error DEVTEMPLATE_NAME must be specified!
+#endif
+
+#ifndef DEVTEMPLATE_FAMILY
+#error DEVTEMPLATE_FAMILY must be specified!
+#endif
+
+#ifdef DEVTEMPLATE_DERIVED_FEATURES
+#ifndef DEVTEMPLATE_DERIVED_NAME
+#error DEVTEMPLATE_DERIVED_NAME must be specified!
+#endif
+#endif
+
+
+/* primary device case */
+#ifndef DEVTEMPLATE_DERIVED_FEATURES
+
+/* derive standard state name (unless explicitly provided) */
+#ifndef DEVTEMPLATE_STATE
+#define DEVTEMPLATE_STATE		DEVTEMPLATE_ID(,_state)
+#endif
+
+/* default to DEVICE_CLASS_PERIPHERAL */
+#ifndef DEVTEMPLATE_CLASS
+#define DEVTEMPLATE_CLASS		DEVICE_CLASS_PERIPHERAL
+#endif
+
+/* default to version 1.0 */
+#ifndef DEVTEMPLATE_VERSION
+#define DEVTEMPLATE_VERSION		"1.0"
+#endif
+
+/* default to the standard copyright attribution */
+#ifndef DEVTEMPLATE_CREDITS
+#define DEVTEMPLATE_CREDITS 	"Copyright Nicola Salmoria and the MAME Team"
+#endif
+
+/* declare callback functions */
+#if ((DEVTEMPLATE_FEATURES) & DT_HAS_RESET)
+static DEVICE_RESET( DEVTEMPLATE_ID(,) );
+#endif
+#if ((DEVTEMPLATE_FEATURES) & DT_HAS_STOP)
+static DEVICE_STOP( DEVTEMPLATE_ID(,) );
+#endif
+#if ((DEVTEMPLATE_FEATURES) & DT_HAS_EXECUTE)
+static DEVICE_EXECUTE( DEVTEMPLATE_ID(,) );
+#endif
+#if ((DEVTEMPLATE_FEATURES) & DT_HAS_NVRAM)
+static DEVICE_NVRAM( DEVTEMPLATE_ID(,) );
+#endif
+#if ((DEVTEMPLATE_FEATURES) & DT_HAS_VALIDITY_CHECK)
+static DEVICE_VALIDITY_CHECK( DEVTEMPLATE_ID(,) );
+#endif
+#if ((DEVTEMPLATE_FEATURES) & DT_HAS_CUSTOM_CONFIG)
+static DEVICE_CUSTOM_CONFIG( DEVTEMPLATE_ID(,) );
+#endif
+
+/* the actual get_info function */
+DEVICE_GET_INFO( DEVTEMPLATE_ID(,) )
+{
+	switch (state)
+	{
+		/* --- the following bits of info are returned as 64-bit signed integers --- */
+		case DEVINFO_INT_TOKEN_BYTES:			info->i = sizeof(DEVTEMPLATE_STATE);							break;
+#if ((DEVTEMPLATE_FEATURES) & DT_HAS_INLINE_CONFIG)
+		case DEVINFO_INT_INLINE_CONFIG_BYTES:	info->i = sizeof(DEVTEMPLATE_ID(,_config));						break;
+#endif
+		case DEVINFO_INT_CLASS:					info->i = DEVTEMPLATE_CLASS;									break;
+		
+		/* --- the following bits of info are returned as pointers --- */
+#if ((DEVTEMPLATE_FEATURES) & DT_HAS_ROM_REGION)
+		case DEVINFO_PTR_ROM_REGION:			info->romregion = DEVTEMPLATE_ID(rom_,);						break;
+#endif
+#if ((DEVTEMPLATE_FEATURES) & DT_HAS_MACHINE_CONFIG)
+		case DEVINFO_PTR_MACHINE_CONFIG:		info->machine_config = DEVTEMPLATE_ID(machine_config_,);		break;
+#endif
+
+		/* --- the following bits of info are returned as pointers to data or functions --- */
+		case DEVINFO_FCT_START:					info->start = DEVTEMPLATE_ID(device_start_,); 					break;
+#if ((DEVTEMPLATE_FEATURES) & DT_HAS_RESET)
+		case DEVINFO_FCT_RESET:					info->reset = DEVTEMPLATE_ID(device_reset_,); 					break;
+#endif
+#if ((DEVTEMPLATE_FEATURES) & DT_HAS_STOP)
+		case DEVINFO_FCT_STOP:					info->stop = DEVTEMPLATE_ID(device_stop_,); 					break;
+#endif
+#if ((DEVTEMPLATE_FEATURES) & DT_HAS_EXECUTE)
+		case DEVINFO_FCT_EXECUTE:				info->execute = DEVTEMPLATE_ID(device_execute_,); 				break;
+#endif
+#if ((DEVTEMPLATE_FEATURES) & DT_HAS_NVRAM)
+		case DEVINFO_FCT_NVRAM:					info->nvram = DEVTEMPLATE_ID(device_nvram_,); 					break;
+#endif
+#if ((DEVTEMPLATE_FEATURES) & DT_HAS_VALIDITY_CHECK)
+		case DEVINFO_FCT_VALIDITY_CHECK:		info->validity_check = DEVTEMPLATE_ID(device_validity_check_,);	break;
+#endif
+#if ((DEVTEMPLATE_FEATURES) & DT_HAS_CUSTOM_CONFIG)
+		case DEVINFO_FCT_CUSTOM_CONFIG:			info->custom_config = DEVTEMPLATE_ID(device_custom_config_,);	break;
+#endif
+
+		/* --- the following bits of info are returned as NULL-terminated strings --- */
+		case DEVINFO_STR_NAME:					strcpy(info->s, DEVTEMPLATE_NAME);								break;
+		case DEVINFO_STR_FAMILY:				strcpy(info->s, DEVTEMPLATE_FAMILY);							break;
+		case DEVINFO_STR_VERSION:				strcpy(info->s, DEVTEMPLATE_VERSION);							break;
+		case DEVINFO_STR_SOURCE_FILE:			strcpy(info->s, DEVTEMPLATE_SOURCE);							break;
+		case DEVINFO_STR_CREDITS:				strcpy(info->s, DEVTEMPLATE_CREDITS); 							break;
+	}
+}
+
+
+/* derived device case */
+#else
+
+/* declare callback functions */
+#if ((DEVTEMPLATE_DERIVED_FEATURES) & DT_HAS_RESET)
+static DEVICE_RESET( DEVTEMPLATE_DERIVED_ID(,) );
+#endif
+#if ((DEVTEMPLATE_DERIVED_FEATURES) & DT_HAS_STOP)
+static DEVICE_STOP( DEVTEMPLATE_DERIVED_ID(,) );
+#endif
+#if ((DEVTEMPLATE_DERIVED_FEATURES) & DT_HAS_EXECUTE)
+static DEVICE_EXECUTE( DEVTEMPLATE_DERIVED_ID(,) );
+#endif
+#if ((DEVTEMPLATE_DERIVED_FEATURES) & DT_HAS_NVRAM)
+static DEVICE_NVRAM( DEVTEMPLATE_DERIVED_ID(,) );
+#endif
+#if ((DEVTEMPLATE_DERIVED_FEATURES) & DT_HAS_VALIDITY_CHECK)
+static DEVICE_VALIDITY_CHECK( DEVTEMPLATE_DERIVED_ID(,) );
+#endif
+#if ((DEVTEMPLATE_DERIVED_FEATURES) & DT_HAS_CUSTOM_CONFIG)
+static DEVICE_CUSTOM_CONFIG( DEVTEMPLATE_DERIVED_ID(,) );
+#endif
+
+/* the actual get_info function */
+DEVICE_GET_INFO( DEVTEMPLATE_DERIVED_ID(,) )
+{
+	switch (state)
+	{
+		/* --- the following bits of info are returned as pointers --- */
+#if ((DEVTEMPLATE_DERIVED_FEATURES) & DT_HAS_ROM_REGION)
+		case DEVINFO_PTR_ROM_REGION:			info->romregion = DEVTEMPLATE_DERIVED_ID(rom_,);						break;
+#endif
+#if ((DEVTEMPLATE_DERIVED_FEATURES) & DT_HAS_MACHINE_CONFIG)
+		case DEVINFO_PTR_MACHINE_CONFIG:		info->machine_config = DEVTEMPLATE_DERIVED_ID(machine_config_,); 		break;
+#endif
+
+		/* --- the following bits of info are returned as pointers to data or functions --- */
+		case DEVINFO_FCT_START:					info->start = DEVTEMPLATE_ID(device_start_,); 							break;
+#if ((DEVTEMPLATE_DERIVED_FEATURES) & DT_HAS_RESET)
+		case DEVINFO_FCT_RESET:					info->reset = DEVTEMPLATE_DERIVED_ID(device_reset_,); 					break;
+#endif
+#if ((DEVTEMPLATE_DERIVED_FEATURES) & DT_HAS_STOP)
+		case DEVINFO_FCT_STOP:					info->stop = DEVTEMPLATE_DERIVED_ID(device_stop_,); 					break;
+#endif
+#if ((DEVTEMPLATE_DERIVED_FEATURES) & DT_HAS_EXECUTE)
+		case DEVINFO_FCT_EXECUTE:				info->execute = DEVTEMPLATE_DERIVED_ID(device_execute_,); 				break;
+#endif
+#if ((DEVTEMPLATE_DERIVED_FEATURES) & DT_HAS_NVRAM)
+		case DEVINFO_FCT_NVRAM:					info->nvram = DEVTEMPLATE_DERIVED_ID(device_nvram_,); 					break;
+#endif
+#if ((DEVTEMPLATE_DERIVED_FEATURES) & DT_HAS_VALIDITY_CHECK)
+		case DEVINFO_FCT_VALIDITY_CHECK:		info->validity_check = DEVTEMPLATE_DERIVED_ID(device_validity_check_,); break;
+#endif
+#if ((DEVTEMPLATE_DERIVED_FEATURES) & DT_HAS_CUSTOM_CONFIG)
+		case DEVINFO_FCT_CUSTOM_CONFIG:			info->custom_config = DEVTEMPLATE_DERIVED_ID(device_custom_config_,); 	break;
+#endif
+
+		/* --- the following bits of info are returned as NULL-terminated strings --- */
+		case DEVINFO_STR_NAME:					strcpy(info->s, DEVTEMPLATE_DERIVED_NAME);								break;
+		default:								DEVICE_GET_INFO_CALL(DEVTEMPLATE_ID(,));								break;
+	}
+}
+
+#endif
+
+
+
+#undef DT_HAS_RESET
+#undef DT_HAS_STOP
+#undef DT_HAS_EXECUTE
+#undef DT_HAS_NVRAM
+#undef DT_HAS_VALIDITY_CHECK
+#undef DT_HAS_CUSTOM_CONFIG
+#undef DT_HAS_ROM_REGION
+#undef DT_HAS_MACHINE_CONFIG
+
+#undef DEVTEMPLATE_DERIVED_ID
+#undef DEVTEMPLATE_DERIVED_FEATURES
+#undef DEVTEMPLATE_DERIVED_NAME
diff --git a/src/mame/audio/namco52.c b/src/mame/audio/namco52.c
index 28fdb098b9b..8505a90b6c1 100644
--- a/src/mame/audio/namco52.c
+++ b/src/mame/audio/namco52.c
@@ -1,55 +1,47 @@
 /***************************************************************************
 
-Namco 52XX
+    Namco 52XX
 
-This instance of the Fujitsu MB8843 MCU is programmed to act as a sample player.
-It is used by just two games: Bosconian and Pole Position.
+    This instance of the Fujitsu MB8843 MCU is programmed to act as a 
+    sample player. It is used by just two games: Bosconian and Pole 
+    Position.
 
-A0-A15 = address to read from sample ROMs
-D0-D7 = data freom sample ROMs
-CMD = command from CPU (sample to play, 0 = none)
-OUT = sound output
+    A0-A15 = address to read from sample ROMs
+    D0-D7 = data from sample ROMs
+    CMD0-CMD3 = command from CPU (sample to play, 0 = none)
+    OUT0-OUT3 = sound output
 
-      +------+
- EXTAL|1   42|Vcc
-  XTAL|2   41|CMD3
-/RESET|3   40|CMD2
-  /IRQ|4   39|CMD1
-  n.c.|5   38|CMD0
-  [2] |6   37|A7
-  n.c.|7   36|A6
-  [1] |8   35|A5
-  OUT0|9   34|A4
-  OUT1|10  33|A3
-  OUT2|11  32|A2
-  OUT3|12  31|A1
-    A8|13  30|A0
-    A9|14  29|D7
-   A10|15  28|D6
-   A11|16  27|D5
-[3]A12|17  26|D4
-[3]A13|18  25|D3
-[3]A14|19  24|D2
-[3]A15|20  23|D1
-   GND|21  22|D0
-      +------+
+                  +------+
+                EX|1   42|Vcc
+                 X|2   41|K3 (CMD3)
+            /RESET|3   40|K2 (CMD2)
+              /IRQ|4   39|K1 (CMD1)
+         (n.c.) SO|5   38|K0 (CMD0)
+            [1] SI|6   37|R15 (A7)
+     (n.c.) /SC/TO|7   36|R14 (A6)
+           [2] /TC|8   35|R13 (A5)
+         (OUT0) P0|9   34|R12 (A4)
+         (OUT1) P1|10  33|R11 (A3)
+         (OUT2) P2|11  32|R10 (A2)
+         (OUT3) P3|12  31|R9 (A1)
+           (A8) O0|13  30|R8 (A0)
+           (A9) O1|14  29|R7 (D7)
+          (A10) O2|15  28|R6 (D6)
+          (A11) O3|16  27|R5 (D5)
+          (A12) O4|17  26|R4 (D4)
+          (A13) O5|18  25|R3 (D3)
+          (A14) O6|19  24|R2 (D2)
+          (A15) O7|20  23|R1 (D1)
+               GND|21  22|R0 (D0)
+                  +------+
 
-[1] in polepos, GND; in bosco, 4kHz output from a 555 timer
-[2] in polepos, +5V; in bosco, GND
-[3] in polepos, these are true address lines, in bosco they are chip select lines
-    (each one select one of the four ROM chips). Behaviour related to [2]
+    [1] in polepos, +5V; in bosco, GND
+        this value controls the ROM addressing mode:
+           if 0 (GND), A12-A15 are direct active-low chip enables
+           if 1 (Vcc), A12-A15 are address lines
 
-
-CMD0-CMD3 -> K0-K3
-D0-D3     -> R0-R3
-D4-D7     -> R4-R7
-A0-A3     -> R8-R11
-A4-A7     -> R12-R15
-A8-A11    -> O0-O3
-A12-A15   -> O4-O7
-OUT0-OUT3 -> P0-P3
-/TC       -> [1]
-SI        -> [2]
+    [2] in polepos, GND; in bosco, output from a 555 timer
+        this value is an external timer, which is used for some samples
 
 ***************************************************************************/
 
@@ -235,40 +227,13 @@ static DEVICE_START( namco_52xx )
 
 
 /*-------------------------------------------------
-    device reset callback
+    device definition
 -------------------------------------------------*/
 
-static DEVICE_RESET( namco_52xx )
-{
-//  namco_52xx_state *state = get_safe_token(device);
-}
+static const char *DEVTEMPLATE_SOURCE = __FILE__;
 
-
-/*-------------------------------------------------
-    device get info callback
--------------------------------------------------*/
-
-DEVICE_GET_INFO( namco_52xx )
-{
-	switch (state)
-	{
-		/* --- the following bits of info are returned as 64-bit signed integers --- */
-		case DEVINFO_INT_TOKEN_BYTES:			info->i = sizeof(namco_52xx_state);				break;
-		case DEVINFO_INT_CLASS:					info->i = DEVICE_CLASS_PERIPHERAL;				break;
-
-		/* --- the following bits of info are returned as pointers --- */
-		case DEVINFO_PTR_ROM_REGION:			info->romregion = ROM_NAME(namco_52xx);			break;
-		case DEVINFO_PTR_MACHINE_CONFIG:		info->machine_config = MACHINE_DRIVER_NAME(namco_52xx); break;
-
-		/* --- the following bits of info are returned as pointers to data or functions --- */
-		case DEVINFO_FCT_START:					info->start = DEVICE_START_NAME(namco_52xx); 	break;
-		case DEVINFO_FCT_RESET:					info->reset = DEVICE_RESET_NAME(namco_52xx); 	break;
-
-		/* --- the following bits of info are returned as NULL-terminated strings --- */
-		case DEVINFO_STR_NAME:					strcpy(info->s, "Namco 52xx");					break;
-		case DEVINFO_STR_FAMILY:				strcpy(info->s, "Namco I/O");					break;
-		case DEVINFO_STR_VERSION:				strcpy(info->s, "1.0");							break;
-		case DEVINFO_STR_SOURCE_FILE:			strcpy(info->s, __FILE__);						break;
-		case DEVINFO_STR_CREDITS:				strcpy(info->s, "Copyright Nicola Salmoria and the MAME Team"); break;
-	}
-}
+#define DEVTEMPLATE_ID(p,s)		p##namco_52xx##s
+#define DEVTEMPLATE_FEATURES	DT_HAS_ROM_REGION | DT_HAS_MACHINE_CONFIG
+#define DEVTEMPLATE_NAME		"Namco 52xx"
+#define DEVTEMPLATE_FAMILY		"Namco I/O"
+#include "devtempl.h"
diff --git a/src/mame/audio/namco54.c b/src/mame/audio/namco54.c
index cac982b4873..549a63550ac 100644
--- a/src/mame/audio/namco54.c
+++ b/src/mame/audio/namco54.c
@@ -1,50 +1,49 @@
 /***************************************************************************
 
-Namco 54XX
+    Namco 54XX
 
-This custom chip is a Fujitsu MB8844 MCU programmed to act as a noise
-generator. It is used for explosions, the shoot sound in Bosconian, and the
-tire screech sound in Pole Position.
+    This custom chip is a Fujitsu MB8844 MCU programmed to act as a noise
+    generator. It is used for explosions, the shoot sound in Bosconian, 
+    and the tire screech sound in Pole Position.
 
-CMD = command from main CPU
-OUTn = sound outputs (3 channels)
+    CMD = command from main CPU
+    OUTn = sound outputs (3 channels)
 
-The chip reads the command when the /IRQ is pulled down.
+    The chip reads the command when the /IRQ is pulled down.
 
-      +------+
- EXTAL|1   28|Vcc
-  XTAL|2   27|CMD7
-/RESET|3   26|CMD6
-OUT0.0|4   25|CMD5
-OUT0.1|5   24|CMD4
-OUT0.2|6   23|/IRQ
-OUT0.3|7   22|n.c. [1]
-OUT1.0|8   21|n.c. [1]
-OUT1.1|9   20|OUT2.3
-OUT1.2|10  19|OUT2.2
-OUT1.3|11  18|OUT2.1
-  CMD0|12  17|OUT2.0
-  CMD1|13  16|CMD3
-   GND|14  15|CMD2
-      +------+
+                       +------+
+                     EX|1   28|Vcc
+                      X|2   27|K3 (CMD7)
+                 /RESET|3   26|K2 (CMD6)
+            (OUT0.0) O0|4   25|K1 (CMD5)
+            (OUT0.1) O1|5   24|K0 (CMD4)
+            (OUT0.2) O2|6   23|R10/IRQ
+            (OUT0.3) O3|7   22|R9/TC
+            (OUT1.0) O4|8   21|R8
+            (OUT1.1) O5|9   20|R7 (OUT2.3)
+            (OUT1.2) O6|10  19|R6 (OUT2.2)
+            (OUT1.3) O7|11  18|R5 (OUT2.1)
+              (CMD0) R0|12  17|R4 (OUT2.0)
+              (CMD1) R1|13  16|R3 (CMD3)
+                    GND|14  15|R2 (CMD2)
+                       +------+
+
+    [1] The RNG that drives the type A output is output on pin 21, and 
+    the one that drives the type B output is output on pin 22, but those 
+    pins are not connected on the board.
 
 
-[1] The RNG that drives the type A output is output on pin 21, and the one that
-drives the type B output is output on pin 22, but those pins are not connected
-on the board.
+    The command format is very simple:
 
-
-The command format is very simple:
-
-0x: nop
-1x: play sound type A
-2x: play sound type B
-3x: set parameters (type A) (followed by 4 bytes)
-4x: set parameters (type B) (followed by 4 bytes)
-5x: play sound type C
-6x: set parameters (type C) (followed by 5 bytes)
-7x: set volume for sound type C to x
-8x-Fx: nop
+    0x: nop
+    1x: play sound type A
+    2x: play sound type B
+    3x: set parameters (type A) (followed by 4 bytes)
+    4x: set parameters (type B) (followed by 4 bytes)
+    5x: play sound type C
+    6x: set parameters (type C) (followed by 5 bytes)
+    7x: set volume for sound type C to x
+    8x-Fx: nop
 
 ***************************************************************************/
 
@@ -184,41 +183,13 @@ static DEVICE_START( namco_54xx )
 
 
 /*-------------------------------------------------
-    device reset callback
+    device definition
 -------------------------------------------------*/
 
-static DEVICE_RESET( namco_54xx )
-{
-//  namco_54xx_state *state = get_safe_token(device);
-}
+static const char *DEVTEMPLATE_SOURCE = __FILE__;
 
-
-/*-------------------------------------------------
-    device get info callback
--------------------------------------------------*/
-
-DEVICE_GET_INFO( namco_54xx )
-{
-	switch (state)
-	{
-		/* --- the following bits of info are returned as 64-bit signed integers --- */
-		case DEVINFO_INT_TOKEN_BYTES:			info->i = sizeof(namco_54xx_state);				break;
-		case DEVINFO_INT_INLINE_CONFIG_BYTES:	info->i = sizeof(namco_54xx_config);			break;
-		case DEVINFO_INT_CLASS:					info->i = DEVICE_CLASS_PERIPHERAL;				break;
-
-		/* --- the following bits of info are returned as pointers --- */
-		case DEVINFO_PTR_ROM_REGION:			info->romregion = ROM_NAME(namco_54xx);			break;
-		case DEVINFO_PTR_MACHINE_CONFIG:		info->machine_config = MACHINE_DRIVER_NAME(namco_54xx); break;
-
-		/* --- the following bits of info are returned as pointers to data or functions --- */
-		case DEVINFO_FCT_START:					info->start = DEVICE_START_NAME(namco_54xx); 	break;
-		case DEVINFO_FCT_RESET:					info->reset = DEVICE_RESET_NAME(namco_54xx); 	break;
-
-		/* --- the following bits of info are returned as NULL-terminated strings --- */
-		case DEVINFO_STR_NAME:					strcpy(info->s, "Namco 54xx");					break;
-		case DEVINFO_STR_FAMILY:				strcpy(info->s, "Namco I/O");					break;
-		case DEVINFO_STR_VERSION:				strcpy(info->s, "1.0");							break;
-		case DEVINFO_STR_SOURCE_FILE:			strcpy(info->s, __FILE__);						break;
-		case DEVINFO_STR_CREDITS:				strcpy(info->s, "Copyright Nicola Salmoria and the MAME Team"); break;
-	}
-}
+#define DEVTEMPLATE_ID(p,s)		p##namco_54xx##s
+#define DEVTEMPLATE_FEATURES	DT_HAS_ROM_REGION | DT_HAS_MACHINE_CONFIG | DT_HAS_INLINE_CONFIG
+#define DEVTEMPLATE_NAME		"Namco 54xx"
+#define DEVTEMPLATE_FAMILY		"Namco I/O"
+#include "devtempl.h"
diff --git a/src/mame/drivers/galaga.c b/src/mame/drivers/galaga.c
index d706d0fc074..a4f6c57b59a 100644
--- a/src/mame/drivers/galaga.c
+++ b/src/mame/drivers/galaga.c
@@ -1669,14 +1669,14 @@ static MACHINE_DRIVER_START( bosco )
 	MDRV_CPU_ADD("sub2", Z80, MASTER_CLOCK/6)	/* 3.072 MHz */
 	MDRV_CPU_PROGRAM_MAP(bosco_map)
 
-	MDRV_NAMCO_50XX_ADD("50xx_1", MASTER_CLOCK/12)	/* 1.536 MHz */
-	MDRV_NAMCO_50XX_ADD("50xx_2", MASTER_CLOCK/12)	/* 1.536 MHz */
-	MDRV_NAMCO_51XX_ADD("51xx", MASTER_CLOCK/12, namco_51xx_intf)		/* 1.536 MHz */
-	MDRV_NAMCO_52XX_ADD("52xx", MASTER_CLOCK/12, namco_52xx_intf)		/* 1.536 MHz */
-	MDRV_NAMCO_54XX_ADD("54xx", MASTER_CLOCK/12, "discrete", NODE_01)	/* 1.536 MHz */
+	MDRV_NAMCO_50XX_ADD("50xx_1", MASTER_CLOCK/6/2)	/* 1.536 MHz */
+	MDRV_NAMCO_50XX_ADD("50xx_2", MASTER_CLOCK/6/2)	/* 1.536 MHz */
+	MDRV_NAMCO_51XX_ADD("51xx", MASTER_CLOCK/6/2, namco_51xx_intf)		/* 1.536 MHz */
+	MDRV_NAMCO_52XX_ADD("52xx", MASTER_CLOCK/6/2, namco_52xx_intf)		/* 1.536 MHz */
+	MDRV_NAMCO_54XX_ADD("54xx", MASTER_CLOCK/6/2, "discrete", NODE_01)	/* 1.536 MHz */
 
-	MDRV_NAMCO_06XX_ADD("06xx_0", "maincpu", "51xx",   NULL,   "50xx_1", "54xx")
-	MDRV_NAMCO_06XX_ADD("06xx_1", "sub",     "50xx_2", "52xx", NULL,     NULL)
+	MDRV_NAMCO_06XX_ADD("06xx_0", MASTER_CLOCK/6/64, "maincpu", "51xx",   NULL,   "50xx_1", "54xx")
+	MDRV_NAMCO_06XX_ADD("06xx_1", MASTER_CLOCK/6/64, "sub",     "50xx_2", "52xx", NULL,     NULL)
 
 	MDRV_WATCHDOG_VBLANK_INIT(8)
 	MDRV_QUANTUM_TIME(HZ(6000))	/* 100 CPU slices per frame - an high value to ensure proper */
@@ -1686,11 +1686,8 @@ static MACHINE_DRIVER_START( bosco )
 
 	/* video hardware */
 	MDRV_SCREEN_ADD("screen", RASTER)
-	MDRV_SCREEN_REFRESH_RATE(60.606060)
-	MDRV_SCREEN_VBLANK_TIME(ATTOSECONDS_IN_USEC(0))
 	MDRV_SCREEN_FORMAT(BITMAP_FORMAT_INDEXED16)
-	MDRV_SCREEN_SIZE(36*8, 272)		/* guess */
-	MDRV_SCREEN_VISIBLE_AREA(0*8, 36*8-1, 2*8, 30*8-1)
+	MDRV_SCREEN_RAW_PARAMS(MASTER_CLOCK/3, 384, 0, 288, 264, 16, 224+16)
 
 	MDRV_GFXDECODE(bosco)
 	MDRV_PALETTE_LENGTH(64*4+64*4+4+64)
@@ -1728,10 +1725,10 @@ static MACHINE_DRIVER_START( galaga )
 	MDRV_CPU_ADD("sub2", Z80, MASTER_CLOCK/6)	/* 3.072 MHz */
 	MDRV_CPU_PROGRAM_MAP(galaga_map)
 
-	MDRV_NAMCO_51XX_ADD("51xx", MASTER_CLOCK/12, namco_51xx_intf)		/* 1.536 MHz */
-	MDRV_NAMCO_54XX_ADD("54xx", MASTER_CLOCK/12, "discrete", NODE_01)	/* 1.536 MHz */
+	MDRV_NAMCO_51XX_ADD("51xx", MASTER_CLOCK/6/2, namco_51xx_intf)		/* 1.536 MHz */
+	MDRV_NAMCO_54XX_ADD("54xx", MASTER_CLOCK/6/2, "discrete", NODE_01)	/* 1.536 MHz */
 
-	MDRV_NAMCO_06XX_ADD("06xx", "maincpu", "51xx", NULL, NULL, "54xx")
+	MDRV_NAMCO_06XX_ADD("06xx", MASTER_CLOCK/6/64, "maincpu", "51xx", NULL, NULL, "54xx")
 
 	MDRV_WATCHDOG_VBLANK_INIT(8)
 	MDRV_QUANTUM_TIME(HZ(6000))	/* 100 CPU slices per frame - an high value to ensure proper */
@@ -1741,11 +1738,8 @@ static MACHINE_DRIVER_START( galaga )
 
 	/* video hardware */
 	MDRV_SCREEN_ADD("screen", RASTER)
-	MDRV_SCREEN_REFRESH_RATE(60.606060)
-	MDRV_SCREEN_VBLANK_TIME(ATTOSECONDS_IN_USEC(0))
 	MDRV_SCREEN_FORMAT(BITMAP_FORMAT_INDEXED16)
-	MDRV_SCREEN_SIZE(36*8, 272)		/* guess */
-	MDRV_SCREEN_VISIBLE_AREA(0*8, 36*8-1, 0*8, 28*8-1)
+	MDRV_SCREEN_RAW_PARAMS(MASTER_CLOCK/3, 384, 0, 288, 264, 0, 224)
 
 	MDRV_GFXDECODE(galaga)
 	MDRV_PALETTE_LENGTH(64*4+64*4+64)
@@ -1797,11 +1791,11 @@ static MACHINE_DRIVER_START( xevious )
 	MDRV_CPU_ADD("sub2", Z80, MASTER_CLOCK/6)	/* 3.072 MHz */
 	MDRV_CPU_PROGRAM_MAP(xevious_map)
 
-	MDRV_NAMCO_50XX_ADD("50xx", MASTER_CLOCK/12)	/* 1.536 MHz */
-	MDRV_NAMCO_51XX_ADD("51xx", MASTER_CLOCK/12, namco_51xx_intf)		/* 1.536 MHz */
-	MDRV_NAMCO_54XX_ADD("54xx", MASTER_CLOCK/12, "discrete", NODE_01)	/* 1.536 MHz */
+	MDRV_NAMCO_50XX_ADD("50xx", MASTER_CLOCK/6/2)	/* 1.536 MHz */
+	MDRV_NAMCO_51XX_ADD("51xx", MASTER_CLOCK/6/2, namco_51xx_intf)		/* 1.536 MHz */
+	MDRV_NAMCO_54XX_ADD("54xx", MASTER_CLOCK/6/2, "discrete", NODE_01)	/* 1.536 MHz */
 
-	MDRV_NAMCO_06XX_ADD("06xx", "maincpu", "51xx", NULL, "50xx", "54xx")
+	MDRV_NAMCO_06XX_ADD("06xx", MASTER_CLOCK/6/64, "maincpu", "51xx", NULL, "50xx", "54xx")
 
 	MDRV_WATCHDOG_VBLANK_INIT(8)
 	MDRV_QUANTUM_TIME(HZ(60000))	/* 1000 CPU slices per frame - an high value to ensure proper */
@@ -1811,11 +1805,8 @@ static MACHINE_DRIVER_START( xevious )
 
 	/* video hardware */
 	MDRV_SCREEN_ADD("screen", RASTER)
-	MDRV_SCREEN_REFRESH_RATE(60.606060)
-	MDRV_SCREEN_VBLANK_TIME(ATTOSECONDS_IN_USEC(0))
 	MDRV_SCREEN_FORMAT(BITMAP_FORMAT_INDEXED16)
-	MDRV_SCREEN_SIZE(36*8, 272)		/* guess */
-	MDRV_SCREEN_VISIBLE_AREA(0*8, 36*8-1, 0*8, 28*8-1)
+	MDRV_SCREEN_RAW_PARAMS(MASTER_CLOCK/3, 384, 0, 288, 264, 0, 224)
 
 	MDRV_GFXDECODE(xevious)
 	MDRV_PALETTE_LENGTH(128*4+64*8+64*2)
@@ -1877,10 +1868,10 @@ static MACHINE_DRIVER_START( digdug )
 	MDRV_CPU_ADD("sub2", Z80, MASTER_CLOCK/6)	/* 3.072 MHz */
 	MDRV_CPU_PROGRAM_MAP(digdug_map)
 
-	MDRV_NAMCO_51XX_ADD("51xx", MASTER_CLOCK/12, namco_51xx_intf)		/* 1.536 MHz */
-	MDRV_NAMCO_53XX_ADD("53xx", MASTER_CLOCK/12, namco_53xx_intf)		/* 1.536 MHz */
+	MDRV_NAMCO_51XX_ADD("51xx", MASTER_CLOCK/6/2, namco_51xx_intf)		/* 1.536 MHz */
+	MDRV_NAMCO_53XX_ADD("53xx", MASTER_CLOCK/6/2, namco_53xx_intf)		/* 1.536 MHz */
 
-	MDRV_NAMCO_06XX_ADD("06xx", "maincpu", "51xx", "53xx", NULL, NULL)
+	MDRV_NAMCO_06XX_ADD("06xx", MASTER_CLOCK/6/64, "maincpu", "51xx", "53xx", NULL, NULL)
 
 	MDRV_QUANTUM_TIME(HZ(6000))	/* 100 CPU slices per frame - an high value to ensure proper */
 							/* synchronization of the CPUs */
@@ -1891,11 +1882,8 @@ static MACHINE_DRIVER_START( digdug )
 
 	/* video hardware */
 	MDRV_SCREEN_ADD("screen", RASTER)
-	MDRV_SCREEN_REFRESH_RATE(60.606060)
-	MDRV_SCREEN_VBLANK_TIME(ATTOSECONDS_IN_USEC(0))
 	MDRV_SCREEN_FORMAT(BITMAP_FORMAT_INDEXED16)
-	MDRV_SCREEN_SIZE(36*8, 272)		/* guess */
-	MDRV_SCREEN_VISIBLE_AREA(0*8, 36*8-1, 0*8, 28*8-1)
+	MDRV_SCREEN_RAW_PARAMS(MASTER_CLOCK/3, 384, 0, 288, 264, 0, 224)
 
 	MDRV_GFXDECODE(digdug)
 	MDRV_PALETTE_LENGTH(16*2+64*4+64*4)
diff --git a/src/mame/drivers/polepos.c b/src/mame/drivers/polepos.c
index 5bfed9c2ce0..cf0f522e143 100644
--- a/src/mame/drivers/polepos.c
+++ b/src/mame/drivers/polepos.c
@@ -917,12 +917,12 @@ static MACHINE_DRIVER_START( polepos )
 	MDRV_CPU_PROGRAM_MAP(z8002_map)
 	MDRV_CPU_VBLANK_INT("screen", irq0_line_assert)
 
-	MDRV_NAMCO_51XX_ADD("51xx", 18432000/12, namco_51xx_intf)		/* 1.536 MHz */
-	MDRV_NAMCO_52XX_ADD("52xx", 18432000/12, namco_52xx_intf)		/* 1.536 MHz */
-	MDRV_NAMCO_53XX_ADD("53xx", 18432000/12, namco_53xx_intf)		/* 1.536 MHz */
-	MDRV_NAMCO_54XX_ADD("54xx", 18432000/12, "discrete", NODE_01)	/* 1.536 MHz */
+	MDRV_NAMCO_51XX_ADD("51xx", 18432000/6/2, namco_51xx_intf)		/* 1.536 MHz */
+	MDRV_NAMCO_52XX_ADD("52xx", 18432000/6/2, namco_52xx_intf)		/* 1.536 MHz */
+	MDRV_NAMCO_53XX_ADD("53xx", 18432000/6/2, namco_53xx_intf)		/* 1.536 MHz */
+	MDRV_NAMCO_54XX_ADD("54xx", 18432000/6/2, "discrete", NODE_01)	/* 1.536 MHz */
 
-	MDRV_NAMCO_06XX_ADD("06xx", "maincpu", "51xx", "53xx", "52xx", "54xx")
+	MDRV_NAMCO_06XX_ADD("06xx", 18432000/6/64, "maincpu", "51xx", "53xx", "52xx", "54xx")
 
 	MDRV_WATCHDOG_VBLANK_INIT(16)	// 128V clocks the same as VBLANK
 
diff --git a/src/mame/machine/namco06.c b/src/mame/machine/namco06.c
index 7edf7acb409..52d8f411c4e 100644
--- a/src/mame/machine/namco06.c
+++ b/src/mame/machine/namco06.c
@@ -1,68 +1,81 @@
 /***************************************************************************
 
-The following Namco custom chips are all instances of the same 4-bit MCU,
-the Fujitsu MB8843 (42-pin DIP package) and MB8842/MB8844 (28-pin DIP),
-differently programmed.
+	Namco 06XX
+	
+	This chip is used as an interface to up to 4 other custom chips.
+	It signals IRQs to the custom MCUs when writes happen, and generates
+	NMIs to the controlling CPU to drive reads based on a clock.
 
-chip  MCU   pins function
----- ------ ---- --------
-50XX MB8842  28  player score handling (protection)
-51XX MB8843  42  I/O (coin management built-in)
-52XX MB8843  42  sample playback
-53XX MB8843  42  I/O (steering wheel support)
-54XX MB8844  28  explosion (noise) generator
+	SD0-SD7 are data I/O lines connecting to the controlling CPU
+	SEL selects either control (1) or data (0), usually connected to
+	    an address line of the controlling CPU
+	/NMI is an NMI signal line for the controlling CPU
 
-06XX interface:
----------------
-Galaga                  51XX  ----  ----  54XX
-Bosconian (CPU board)   51XX  ----  50XX  54XX
-Bosconian (Video board) 50XX  52XX  ----  ----
-Xevious                 51XX  ----  50XX  54XX
-Dig Dug                 51XX  53XX  ----  ----
-Pole Position / PP II   51XX  53XX  52XX  54XX
+	ID0-ID7 are data I/O lines connecting to the other custom chips
+	/IO1-/IO4 are IRQ signal lines for each custom chip
+
+                   +------+
+                [1]|1   28|Vcc
+                ID7|2   27|SD7
+                ID6|3   26|SD6
+                ID5|4   25|SD5
+                ID4|5   24|SD4
+                ID3|6   23|SD3
+                ID2|7   22|SD2
+                ID1|8   21|SD1
+                ID0|9   20|SD0
+               /IO1|10  19|/NMI
+               /IO2|11  18|/CS
+               /IO3|12  17|CLOCK
+               /IO4|13  16|R/W
+                GND|14  15|SEL
+                   +------+
+
+	[1] on polepos, galaga, xevious, and bosco: connected to K3 of the 51xx
+		on bosco and xevious, connected to R8 of the 50xx
 
 
-Pinouts:
-
-        MB8843                   MB8842/MB8844
-       +------+                    +------+
-  EXTAL|1   42|Vcc            EXTAL|1   28|Vcc
-   XTAL|2   41|K3              XTAL|2   27|K3
- /RESET|3   40|K2            /RESET|3   26|K2
-   /IRQ|4   39|K1                O0|4   25|K1
-     SO|5   38|K0                O1|5   24|K0
-     SI|6   37|R15               O2|6   23|R10 /IRQ
-/SC /TO|7   36|R14               O3|7   22|R9 /TC
-    /TC|8   35|R13               O4|8   21|R8
-     P0|9   34|R12               O5|9   20|R7
-     P1|10  33|R11               O6|10  19|R6
-     P2|11  32|R10               O7|11  18|R5
-     P3|12  31|R9                R0|12  17|R4
-     O0|13  30|R8                R1|13  16|R3
-     O1|14  29|R7               GND|14  15|R2
-     O2|15  28|R6                  +------+
-     O3|16  27|R5
-     O4|17  26|R4
-     O5|18  25|R3
-     O6|19  24|R2
-     O7|20  23|R1
-    GND|21  22|R0
-       +------+
+	06XX interface:
+	---------------
+	Galaga                  51XX  ----  ----  54XX
+	Bosconian (CPU board)   51XX  ----  50XX  54XX
+	Bosconian (Video board) 50XX  52XX  ----  ----
+	Xevious                 51XX  ----  50XX  54XX
+	Dig Dug                 51XX  53XX  ----  ----
+	Pole Position / PP II   51XX  53XX  52XX  54XX
 
 
-      O  O  R  R  R  K
-50XX  O  O  I     I  I
-54XX  O  O  I  O     I
+	Galaga writes:
+		control = 10(000), data = FF at startup
+		control = 71(011), read 3, control = 10
+		control = A1(101), write 4, control = 10
+		control = A8(101), write 12, control = 10
 
-      P  O  O  R  R  R  R  K
-51XX  O  O  O  I  I  I  I  I
-52XX  O  O  O  I  I  O  O  I
-53XX  O? O  O  I  I  I  I  I
+	Xevious writes:
+		control = 10 at startup
+		control = A1(101), write 6, control = 10
+		control = 71(011), read 3, control = 10
+		control = 64(011), write 1, control = 10
+		control = 74(011), read 4, control = 10
+		control = 68(011), write 7, control = 10
+	
+	Dig Dug writes:
+		control = 10(000), data = 10 at startup
+		control = A1(101), write 3, control = 10
+		control = 71(011), read 3, control = 10
+		control = D2(110), read 2, control = 10
+		
+	Bosco writes:
+		control = 10(000), data = FF at startup
+		control = C8(110), write 17, control = 10
+		control = 61(011), write 1, control = 10
+		control = 71(011), read 3, control = 10
+		control = 94(100), read 4, control = 10
+		control = 64(011), write 1, control = 10
+		control = 84(100), write 5, control = 10
 
 
-For the 52XX, see sound/namco52.c
-
-For the 54XX, see audio/namco54.c
+		control = 34(001), write 1, control = 10
 
 ***************************************************************************/
 
@@ -83,7 +96,7 @@ For the 54XX, see audio/namco54.c
 typedef struct _namco_06xx_state namco_06xx_state;
 struct _namco_06xx_state
 {
-	UINT8 command;
+	UINT8 control;
 	emu_timer *nmi_timer;
 	const device_config *nmicpu;
 	const device_config *device[4];
@@ -121,50 +134,41 @@ static TIMER_CALLBACK( nmi_generate )
 READ8_DEVICE_HANDLER( namco_06xx_data_r )
 {
 	namco_06xx_state *state = get_safe_token(device);
+	UINT8 result = 0xff;
+	int devnum;
 
 	LOG(("%s: 06XX '%s' read offset %d\n",cpuexec_describe_context(device->machine),device->tag,offset));
 
-	if (!(state->command & 0x10))
+	if (!(state->control & 0x10))
 	{
-		logerror("%s: 06XX '%s' read in write mode %02x\n",cpuexec_describe_context(device->machine),device->tag,state->command);
+		logerror("%s: 06XX '%s' read in write mode %02x\n",cpuexec_describe_context(device->machine),device->tag,state->control);
 		return 0;
 	}
 
-	switch (state->command & 0xf)
-	{
-		case 0x1: return (state->read[0] != NULL) ? (*state->read[0])(state->device[0],0) : 0xff;
-		case 0x2: return (state->read[1] != NULL) ? (*state->read[1])(state->device[1],0) : 0xff;
-		case 0x4: return (state->read[2] != NULL) ? (*state->read[2])(state->device[2],0) : 0xff;
-		case 0x8: return (state->read[3] != NULL) ? (*state->read[3])(state->device[3],0) : 0xff;
-		default:
-			logerror("%s: 06XX '%s' read in unsupported mode %02x\n",cpuexec_describe_context(device->machine),device->tag,state->command);
-			return 0xff;
-	}
+	for (devnum = 0; devnum < 4; devnum++)
+		if ((state->control & (1 << devnum)) && state->read[devnum] != NULL)
+			result &= (*state->read[devnum])(state->device[devnum], 0);
+
+	return result;
 }
 
 
 WRITE8_DEVICE_HANDLER( namco_06xx_data_w )
 {
 	namco_06xx_state *state = get_safe_token(device);
+	int devnum;
 
 	LOG(("%s: 06XX '%s' write offset %d = %02x\n",cpuexec_describe_context(device->machine),device->tag,offset,data));
 
-	if (state->command & 0x10)
+	if (state->control & 0x10)
 	{
-		logerror("%s: 06XX '%s' write in read mode %02x\n",cpuexec_describe_context(device->machine),device->tag,state->command);
+		logerror("%s: 06XX '%s' write in read mode %02x\n",cpuexec_describe_context(device->machine),device->tag,state->control);
 		return;
 	}
 
-	switch (state->command & 0xf)
-	{
-		case 0x1: if (state->write[0] != NULL) (*state->write[0])(state->device[0],0,data); break;
-		case 0x2: if (state->write[1] != NULL) (*state->write[1])(state->device[1],0,data); break;
-		case 0x4: if (state->write[2] != NULL) (*state->write[2])(state->device[2],0,data); break;
-		case 0x8: if (state->write[3] != NULL) (*state->write[3])(state->device[3],0,data); break;
-		default:
-			logerror("%s: 06XX '%s' write in unsupported mode %02x\n",cpuexec_describe_context(device->machine),device->tag,state->command);
-			break;
-	}
+	for (devnum = 0; devnum < 4; devnum++)
+		if ((state->control & (1 << devnum)) && state->write[devnum] != NULL)
+			(*state->write[devnum])(state->device[devnum], 0, data);
 }
 
 
@@ -172,18 +176,19 @@ READ8_DEVICE_HANDLER( namco_06xx_ctrl_r )
 {
 	namco_06xx_state *state = get_safe_token(device);
 	LOG(("%s: 06XX '%s' ctrl_r\n",cpuexec_describe_context(device->machine),device->tag));
-	return state->command;
+	return state->control;
 }
 
 WRITE8_DEVICE_HANDLER( namco_06xx_ctrl_w )
 {
 	namco_06xx_state *state = get_safe_token(device);
+	int devnum;
 
-	LOG(("%s: 06XX '%s' command %02x\n",cpuexec_describe_context(device->machine),device->tag,data));
+	LOG(("%s: 06XX '%s' control %02x\n",cpuexec_describe_context(device->machine),device->tag,data));
 
-	state->command = data;
+	state->control = data;
 
-	if ((state->command & 0x0f) == 0)
+	if ((state->control & 0x0f) == 0)
 	{
 		LOG(("disabling nmi generate timer\n"));
 		timer_adjust_oneshot(state->nmi_timer, attotime_never, 0);
@@ -195,21 +200,13 @@ WRITE8_DEVICE_HANDLER( namco_06xx_ctrl_w )
 		// this timing is critical. Due to a bug, Bosconian will stop responding to
 		// inputs if a transfer terminates at the wrong time.
 		// On the other hand, the time cannot be too short otherwise the 54XX will
-		// not have enough time to process the incoming commands.
+		// not have enough time to process the incoming controls.
 		timer_adjust_periodic(state->nmi_timer, ATTOTIME_IN_USEC(200), 0, ATTOTIME_IN_USEC(200));
 
-		if (state->command & 0x10)
-		{
-			switch (state->command & 0xf)
-			{
-				case 0x1: if (state->readreq[0] != NULL) (*state->readreq[0])(state->device[0]); break;
-				case 0x2: if (state->readreq[1] != NULL) (*state->readreq[1])(state->device[1]); break;
-				case 0x4: if (state->readreq[2] != NULL) (*state->readreq[2])(state->device[2]); break;
-				case 0x8: if (state->readreq[3] != NULL) (*state->readreq[3])(state->device[3]); break;
-				default:
-					logerror("%s: 06XX '%s' read in unsupported mode %02x\n",cpuexec_describe_context(device->machine),device->tag,state->command);
-			}
-		}
+		if (state->control & 0x10)
+			for (devnum = 0; devnum < 4; devnum++)
+				if ((state->control & (1 << devnum)) && state->readreq[devnum] != NULL)
+					(*state->readreq[devnum])(state->device[devnum]);
 	}
 }
 
@@ -224,7 +221,7 @@ WRITE8_DEVICE_HANDLER( namco_06xx_ctrl_w )
 
 static DEVICE_START( namco_06xx )
 {
-	const namco_06xx_interface *config = (const namco_06xx_interface *)device->inline_config;
+	const namco_06xx_config *config = (const namco_06xx_config *)device->inline_config;
 	namco_06xx_state *state = get_safe_token(device);
 	int devnum;
 
@@ -277,7 +274,7 @@ static DEVICE_START( namco_06xx )
 	/* allocate a timer */
 	state->nmi_timer = timer_alloc(device->machine, nmi_generate, (void *)device);
 
-	state_save_register_device_item(device, 0, state->command);
+	state_save_register_device_item(device, 0, state->control);
 }
 
 
@@ -288,32 +285,18 @@ static DEVICE_START( namco_06xx )
 static DEVICE_RESET( namco_06xx )
 {
 	namco_06xx_state *state = get_safe_token(device);
-	state->command = 0;
+	state->control = 0;
 }
 
 
 /*-------------------------------------------------
-    device get info callback
+    device definition
 -------------------------------------------------*/
 
-DEVICE_GET_INFO( namco_06xx )
-{
-	switch (state)
-	{
-		/* --- the following bits of info are returned as 64-bit signed integers --- */
-		case DEVINFO_INT_TOKEN_BYTES:			info->i = sizeof(namco_06xx_state);				break;
-		case DEVINFO_INT_INLINE_CONFIG_BYTES:	info->i = sizeof(namco_06xx_interface);			break;
-		case DEVINFO_INT_CLASS:					info->i = DEVICE_CLASS_PERIPHERAL;				break;
+static const char *DEVTEMPLATE_SOURCE = __FILE__;
 
-		/* --- the following bits of info are returned as pointers to data or functions --- */
-		case DEVINFO_FCT_START:					info->start = DEVICE_START_NAME(namco_06xx); 	break;
-		case DEVINFO_FCT_RESET:					info->reset = DEVICE_RESET_NAME(namco_06xx); 	break;
-
-		/* --- the following bits of info are returned as NULL-terminated strings --- */
-		case DEVINFO_STR_NAME:					strcpy(info->s, "Namco 06xx");					break;
-		case DEVINFO_STR_FAMILY:				strcpy(info->s, "Namco I/O");					break;
-		case DEVINFO_STR_VERSION:				strcpy(info->s, "1.0");							break;
-		case DEVINFO_STR_SOURCE_FILE:			strcpy(info->s, __FILE__);						break;
-		case DEVINFO_STR_CREDITS:				strcpy(info->s, "Copyright Nicola Salmoria and the MAME Team"); break;
-	}
-}
+#define DEVTEMPLATE_ID(p,s)		p##namco_06xx##s
+#define DEVTEMPLATE_FEATURES	DT_HAS_RESET | DT_HAS_INLINE_CONFIG
+#define DEVTEMPLATE_NAME		"Namco 06xx"
+#define DEVTEMPLATE_FAMILY		"Namco I/O"
+#include "devtempl.h"
diff --git a/src/mame/machine/namco06.h b/src/mame/machine/namco06.h
index 3ff43dd2c45..988c9b13943 100644
--- a/src/mame/machine/namco06.h
+++ b/src/mame/machine/namco06.h
@@ -4,8 +4,8 @@
 #include "devintrf.h"
 
 
-typedef struct _namco_06xx_interface namco_06xx_interface;
-struct _namco_06xx_interface
+typedef struct _namco_06xx_config namco_06xx_config;
+struct _namco_06xx_config
 {
 	const char *nmicpu;
 	const char *chip0;
@@ -15,13 +15,13 @@ struct _namco_06xx_interface
 };
 
 
-#define MDRV_NAMCO_06XX_ADD(_tag, _nmicpu, _chip0, _chip1, _chip2, _chip3) \
-	MDRV_DEVICE_ADD(_tag, NAMCO_06XX, 0) \
-	MDRV_DEVICE_CONFIG_DATAPTR(namco_06xx_interface, nmicpu, _nmicpu) \
-	MDRV_DEVICE_CONFIG_DATAPTR(namco_06xx_interface, chip0, _chip0) \
-	MDRV_DEVICE_CONFIG_DATAPTR(namco_06xx_interface, chip1, _chip1) \
-	MDRV_DEVICE_CONFIG_DATAPTR(namco_06xx_interface, chip2, _chip2) \
-	MDRV_DEVICE_CONFIG_DATAPTR(namco_06xx_interface, chip3, _chip3)
+#define MDRV_NAMCO_06XX_ADD(_tag, _clock, _nmicpu, _chip0, _chip1, _chip2, _chip3) \
+	MDRV_DEVICE_ADD(_tag, NAMCO_06XX, _clock) \
+	MDRV_DEVICE_CONFIG_DATAPTR(namco_06xx_config, nmicpu, _nmicpu) \
+	MDRV_DEVICE_CONFIG_DATAPTR(namco_06xx_config, chip0, _chip0) \
+	MDRV_DEVICE_CONFIG_DATAPTR(namco_06xx_config, chip1, _chip1) \
+	MDRV_DEVICE_CONFIG_DATAPTR(namco_06xx_config, chip2, _chip2) \
+	MDRV_DEVICE_CONFIG_DATAPTR(namco_06xx_config, chip3, _chip3)
 
 #define MDRV_NAMCO_06XX_REMOVE(_tag) \
 	MDRV_DEVICE_REMOVE(_tag)
diff --git a/src/mame/machine/namco50.c b/src/mame/machine/namco50.c
index b6031005df5..3a4c84e8c8b 100644
--- a/src/mame/machine/namco50.c
+++ b/src/mame/machine/namco50.c
@@ -1,37 +1,38 @@
 /***************************************************************************
 
-Namco 50XX
+    Namco 50XX
 
-This custom chip is a Fujitsu MB8842 MCU programmed to act as a protection
-device. It keeps track of the players scores, and checks if a high score has
-been obtained or bonus lives should be awarded. The main CPU has a range of
-commands to increment/decrement the score by various fixed amounts.
+    This custom chip is a Fujitsu MB8842 MCU programmed to act as a 
+    protection device. It keeps track of the players scores, and checks if 
+    a high score has been obtained or bonus lives should be awarded. The 
+    main CPU has a range of commands to increment/decrement the score by 
+    various fixed amounts.
 
-The device is used to its full potential only by Bosconian; Xevious uses it
-too, but only to do a protection check on startup.
+    The device is used to its full potential only by Bosconian; Xevious 
+    uses it too, but only to do a protection check on startup.
 
-CMD = command from main CPU
-ANS = answer to main CPU
+    CMD = command from main CPU
+    ANS = answer to main CPU
 
-The chip reads/writes the I/O ports when the /IRQ is pulled down. Pin 21
-determines whether a read or write should happen (1=R, 0=W).
+    The chip reads/writes the I/O ports when the /IRQ is pulled down. Pin 21
+    determines whether a read or write should happen (1=R, 0=W).
 
-      +------+
- EXTAL|1   28|Vcc
-  XTAL|2   27|CMD7
-/RESET|3   26|CMD6
-  ANS0|4   25|CMD5
-  ANS1|5   24|CMD4
-  ANS2|6   23|/IRQ
-  ANS3|7   22|n.c.
-  ANS4|8   21|R/W
-  ANS5|9   20|n.c.
-  ANS6|10  19|n.c.
-  ANS7|11  18|n.c.
-  CMD0|12  17|n.c.
-  CMD1|13  16|CMD3
-   GND|14  15|CMD2
-      +------+
+                  +------+
+                EX|1   28|Vcc
+                 X|2   27|K3 (CMD7)
+            /RESET|3   26|K2 (CMD6)
+         (ANS0) O0|4   25|K1 (CMD5)
+         (ANS1) O1|5   24|K0 (CMD4)
+         (ANS2) O2|6   23|R10/IRQ
+         (ANS3) O3|7   22|R9/TC (n.c.)
+         (ANS4) O4|8   21|R8 (R/W)
+         (ANS5) O5|9   20|R7 (n.c.)
+         (ANS6) O6|10  19|R6 (n.c.)
+         (ANS7) O7|11  18|R5 (n.c.)
+         (CMD0) R7|12  17|R4 (n.c.)
+         (CMD1) R0|13  16|R3 (CMD3) 
+               GND|14  15|R2 (CMD2)
+                  +------+
 
 
 
@@ -290,40 +291,13 @@ static DEVICE_START( namco_50xx )
 
 
 /*-------------------------------------------------
-    device reset callback
+    device definition
 -------------------------------------------------*/
 
-static DEVICE_RESET( namco_50xx )
-{
-//  namco_50xx_state *state = get_safe_token(device);
-}
+static const char *DEVTEMPLATE_SOURCE = __FILE__;
 
-
-/*-------------------------------------------------
-    device get info callback
--------------------------------------------------*/
-
-DEVICE_GET_INFO( namco_50xx )
-{
-	switch (state)
-	{
-		/* --- the following bits of info are returned as 64-bit signed integers --- */
-		case DEVINFO_INT_TOKEN_BYTES:			info->i = sizeof(namco_50xx_state);				break;
-		case DEVINFO_INT_CLASS:					info->i = DEVICE_CLASS_PERIPHERAL;				break;
-
-		/* --- the following bits of info are returned as pointers --- */
-		case DEVINFO_PTR_ROM_REGION:			info->romregion = ROM_NAME(namco_50xx);			break;
-		case DEVINFO_PTR_MACHINE_CONFIG:		info->machine_config = MACHINE_DRIVER_NAME(namco_50xx); break;
-
-		/* --- the following bits of info are returned as pointers to data or functions --- */
-		case DEVINFO_FCT_START:					info->start = DEVICE_START_NAME(namco_50xx); 	break;
-		case DEVINFO_FCT_RESET:					info->reset = DEVICE_RESET_NAME(namco_50xx); 	break;
-
-		/* --- the following bits of info are returned as NULL-terminated strings --- */
-		case DEVINFO_STR_NAME:					strcpy(info->s, "Namco 50xx");					break;
-		case DEVINFO_STR_FAMILY:				strcpy(info->s, "Namco I/O");					break;
-		case DEVINFO_STR_VERSION:				strcpy(info->s, "1.0");							break;
-		case DEVINFO_STR_SOURCE_FILE:			strcpy(info->s, __FILE__);						break;
-		case DEVINFO_STR_CREDITS:				strcpy(info->s, "Copyright Nicola Salmoria and the MAME Team"); break;
-	}
-}
+#define DEVTEMPLATE_ID(p,s)		p##namco_50xx##s
+#define DEVTEMPLATE_FEATURES	DT_HAS_ROM_REGION | DT_HAS_MACHINE_CONFIG
+#define DEVTEMPLATE_NAME		"Namco 50xx"
+#define DEVTEMPLATE_FAMILY		"Namco I/O"
+#include "devtempl.h"
diff --git a/src/mame/machine/namco51.c b/src/mame/machine/namco51.c
index b0465fabd93..1a7b0c1cef4 100644
--- a/src/mame/machine/namco51.c
+++ b/src/mame/machine/namco51.c
@@ -1,58 +1,56 @@
 /***************************************************************************
 
-Namco 51XX
+	Namco 51XX
 
-This custom chip is a Fujitsu MB8843 MCU programmed to act as an I/O device
-with built-in coin management.
- protection
-device. It keeps track of the players scores, and checks if a high score has
-been obtained or bonus lives should be awarded. The main CPU has a range of
-commands to increment/decrement the score by various fixed amounts.
+	This custom chip is a Fujitsu MB8843 MCU programmed to act as an I/O 
+	device with built-in coin management. It is also apparently used as a
+	protection device. It keeps track of the players scores, and checks 
+	if a high score has been obtained or bonus lives should be awarded. 
+	The main CPU has a range of commands to increment/decrement the score 
+	by various fixed amounts.
 
-The device is used to its full potential only by Bosconian; Xevious uses it
-too, but only to do a protection check on startup.
+	The device is used to its full potential only by Bosconian; Xevious 
+	uses it too, but only to do a protection check on startup.
 
-CMD = command from main CPU
-ANS = answer to main CPU
+	CMD = command from main CPU
+	ANS = answer to main CPU
 
-The chip reads/writes the I/O ports when the /IRQ is pulled down. Pin 21
-determines whether a read or write should happen (1=R, 0=W).
+	The chip reads/writes the I/O ports when the /IRQ is pulled down. 
+	Pin 21 determines whether a read or write should happen (1=R, 0=W).
 
-        MB8843
-       +------+
-  EXTAL|1   42|Vcc
-   XTAL|2   41|K3
- /RESET|3   40|K2
-   /IRQ|4   39|K1
-     SO|5   38|K0
-     SI|6   37|R15
-/SC /TO|7   36|R14
-    /TC|8   35|R13
-     P0|9   34|R12
-     P1|10  33|R11
-     P2|11  32|R10
-     P3|12  31|R9
-     O0|13  30|R8
-     O1|14  29|R7
-     O2|15  28|R6
-     O3|16  27|R5
-     O4|17  26|R4
-     O5|18  25|R3
-     O6|19  24|R2
-     O7|20  23|R1
-    GND|21  22|R0
-       +------+
+		       +------+
+		     EX|1   42|Vcc
+		      X|2   41|K3
+		 /RESET|3   40|K2
+		   /IRQ|4   39|K1
+		     SO|5   38|K0
+		     SI|6   37|R15
+		/SC /TO|7   36|R14
+		    /TC|8   35|R13
+		     P0|9   34|R12
+		     P1|10  33|R11
+		     P2|11  32|R10
+		     P3|12  31|R9
+		     O0|13  30|R8
+		     O1|14  29|R7
+		     O2|15  28|R6
+		     O3|16  27|R5
+		     O4|17  26|R4
+		     O5|18  25|R3
+		     O6|19  24|R2
+		     O7|20  23|R1
+		    GND|21  22|R0
+		       +------+
 
-
-commands:
-00: nop
-01 + 4 arguments: set coinage (xevious, possibly because of a bug, is different)
-02: go in "credit" mode and enable start buttons
-03: disable joystick remapping
-04: enable joystick remapping
-05: go in "switch" mode
-06: nop
-07: nop
+	commands:
+	00: nop
+	01 + 4 arguments: set coinage (xevious, possibly because of a bug, is different)
+	02: go in "credit" mode and enable start buttons
+	03: disable joystick remapping
+	04: enable joystick remapping
+	05: go in "switch" mode
+	06: nop
+	07: nop
 
 ***************************************************************************/
 
@@ -431,30 +429,13 @@ static DEVICE_RESET( namco_51xx )
 
 
 /*-------------------------------------------------
-    device get info callback
+    device definition
 -------------------------------------------------*/
 
-DEVICE_GET_INFO( namco_51xx )
-{
-	switch (state)
-	{
-		/* --- the following bits of info are returned as 64-bit signed integers --- */
-		case DEVINFO_INT_TOKEN_BYTES:			info->i = sizeof(namco_51xx_state);				break;
-		case DEVINFO_INT_CLASS:					info->i = DEVICE_CLASS_PERIPHERAL;				break;
+static const char *DEVTEMPLATE_SOURCE = __FILE__;
 
-		/* --- the following bits of info are returned as pointers --- */
-		case DEVINFO_PTR_ROM_REGION:			info->romregion = ROM_NAME(namco_51xx);			break;
-		case DEVINFO_PTR_MACHINE_CONFIG:		info->machine_config = MACHINE_DRIVER_NAME(namco_51xx); break;
-
-		/* --- the following bits of info are returned as pointers to data or functions --- */
-		case DEVINFO_FCT_START:					info->start = DEVICE_START_NAME(namco_51xx); 	break;
-		case DEVINFO_FCT_RESET:					info->reset = DEVICE_RESET_NAME(namco_51xx); 	break;
-
-		/* --- the following bits of info are returned as NULL-terminated strings --- */
-		case DEVINFO_STR_NAME:					strcpy(info->s, "Namco 51xx");					break;
-		case DEVINFO_STR_FAMILY:				strcpy(info->s, "Namco I/O");					break;
-		case DEVINFO_STR_VERSION:				strcpy(info->s, "1.0");							break;
-		case DEVINFO_STR_SOURCE_FILE:			strcpy(info->s, __FILE__);						break;
-		case DEVINFO_STR_CREDITS:				strcpy(info->s, "Copyright Nicola Salmoria and the MAME Team"); break;
-	}
-}
+#define DEVTEMPLATE_ID(p,s)		p##namco_51xx##s
+#define DEVTEMPLATE_FEATURES	DT_HAS_RESET | DT_HAS_ROM_REGION | DT_HAS_MACHINE_CONFIG
+#define DEVTEMPLATE_NAME		"Namco 51xx"
+#define DEVTEMPLATE_FAMILY		"Namco I/O"
+#include "devtempl.h"
diff --git a/src/mame/machine/namco53.c b/src/mame/machine/namco53.c
index f2ba5f9c997..3ea1e6fda1b 100644
--- a/src/mame/machine/namco53.c
+++ b/src/mame/machine/namco53.c
@@ -1,41 +1,54 @@
 /***************************************************************************
 
-Namco 53XX
+    Namco 53XX
 
-This custom chip is a Fujitsu MB8843 MCU programmed to act as an I/O device.
+    This instance of the Fujitsu MB8843 MCU is programmed to act as an I/O 
+    device. It is used by just two games: Dig Dug and Pole Position.
+    
+    MOD0-MOD2 = input mode
+    CS0-CS3 = chip select lines used to select 1 of 4 input sources
+    OUT0-OUT7 = 8-bit final output data
+    P0.0-P0.3 = input port 0 data
+    P1.0-P1.3 = input port 1 data
+    P2.0-P2.3 = input port 2 data
+    P3.0-P3.3 = input port 3 data
 
-        MB8843
-       +------+
-  EXTAL|1   42|Vcc
-   XTAL|2   41|K3
- /RESET|3   40|K2
-   /IRQ|4   39|K1
-     SO|5   38|K0
-     SI|6   37|R15
-/SC /TO|7   36|R14
-    /TC|8   35|R13
-     P0|9   34|R12
-     P1|10  33|R11
-     P2|11  32|R10
-     P3|12  31|R9
-     O0|13  30|R8
-     O1|14  29|R7
-     O2|15  28|R6
-     O3|16  27|R5
-     O4|17  26|R4
-     O5|18  25|R3
-     O6|19  24|R2
-     O7|20  23|R1
-    GND|21  22|R0
-       +------+
+                   +------+
+                 EX|1   42|Vcc
+                  X|2   41|K3 (MOD2)
+             /RESET|3   40|K2 (MOD1)
+               /IRQ|4   39|K1 (MOD0)
+                 SO|5   38|K0
+                 SI|6   37|R15 (P3.3)
+            /SC /TO|7   36|R14 (P3.2)
+                /TC|8   35|R13 (P3.1)
+           (CS0) P0|9   34|R12 (P3.0)
+           (CS1) P1|10  33|R11 (P2.3)
+           (CS2) P2|11  32|R10 (P2.2)
+           (CS3) P3|12  31|R9 (P2.1)
+          (OUT0) O0|13  30|R8 (P2.0)
+          (OUT1) O1|14  29|R7 (P1.3)
+          (OUT2) O2|15  28|R6 (P1.2)
+          (OUT3) O3|16  27|R5 (P1.1)
+          (OUT4) O4|17  26|R4 (P1.0)
+          (OUT5) O5|18  25|R3 (P0.3)
+          (OUT6) O6|19  24|R2 (P0.2)
+          (OUT7) O7|20  23|R1 (P0.1)
+                GND|21  22|R0 (P0.0)
+                   +------+
 
-Bits K1-K3 select one of 8 modes in which the input data is interpreted.
+    MOD selects one of 8 modes in which the input data is interpreted.
 
-Pole Position is hard-wired to use mode 0, which reads 4 steering inputs
-and 4 DIP switches (only 1 of each is used).
+    Pole Position is hard-wired to use mode 0, which reads 4 steering 
+    inputs and 4 DIP switches (only 1 of each is used). The steering
+    inputs are clocked on P0 and direction on P1, 1 bit per analog input.
+    The DIP switches are connected to P2 and P3.
 
-Dig Dug can control which mode to use via the MOD bit latches. It sets
-these values to mode 7 when running.
+    Dig Dug can control which mode to use via the MOD bit latches. It sets
+    these values to mode 7 when running.
+
+	Unknowns:
+		SO is connected to IOSEL on Pole Position
 
 ***************************************************************************/
 
@@ -180,40 +193,13 @@ static DEVICE_START( namco_53xx )
 
 
 /*-------------------------------------------------
-    device reset callback
+    device definition
 -------------------------------------------------*/
 
-static DEVICE_RESET( namco_53xx )
-{
-//  namco_53xx_state *state = get_safe_token(device);
-}
+static const char *DEVTEMPLATE_SOURCE = __FILE__;
 
-
-/*-------------------------------------------------
-    device get info callback
--------------------------------------------------*/
-
-DEVICE_GET_INFO( namco_53xx )
-{
-	switch (state)
-	{
-		/* --- the following bits of info are returned as 64-bit signed integers --- */
-		case DEVINFO_INT_TOKEN_BYTES:			info->i = sizeof(namco_53xx_state);				break;
-		case DEVINFO_INT_CLASS:					info->i = DEVICE_CLASS_PERIPHERAL;				break;
-
-		/* --- the following bits of info are returned as pointers --- */
-		case DEVINFO_PTR_ROM_REGION:			info->romregion = ROM_NAME(namco_53xx);			break;
-		case DEVINFO_PTR_MACHINE_CONFIG:		info->machine_config = MACHINE_DRIVER_NAME(namco_53xx); break;
-
-		/* --- the following bits of info are returned as pointers to data or functions --- */
-		case DEVINFO_FCT_START:					info->start = DEVICE_START_NAME(namco_53xx); 	break;
-		case DEVINFO_FCT_RESET:					info->reset = DEVICE_RESET_NAME(namco_53xx); 	break;
-
-		/* --- the following bits of info are returned as NULL-terminated strings --- */
-		case DEVINFO_STR_NAME:					strcpy(info->s, "Namco 53xx");					break;
-		case DEVINFO_STR_FAMILY:				strcpy(info->s, "Namco I/O");					break;
-		case DEVINFO_STR_VERSION:				strcpy(info->s, "1.0");							break;
-		case DEVINFO_STR_SOURCE_FILE:			strcpy(info->s, __FILE__);						break;
-		case DEVINFO_STR_CREDITS:				strcpy(info->s, "Copyright Nicola Salmoria and the MAME Team"); break;
-	}
-}
+#define DEVTEMPLATE_ID(p,s)		p##namco_53xx##s
+#define DEVTEMPLATE_FEATURES	DT_HAS_ROM_REGION | DT_HAS_MACHINE_CONFIG
+#define DEVTEMPLATE_NAME		"Namco 53xx"
+#define DEVTEMPLATE_FAMILY		"Namco I/O"
+#include "devtempl.h"