mirror of
https://github.com/holub/mame
synced 2025-04-16 13:34:55 +03:00
Clean up odds and ends (nw)
- com8116: Delete SY2661-1/-2 tables (these are just second sources of SCN2661A/B) - mc2661: Remove obsolete device - rs232: Remove 7200 baud setting formerly required by one driver to work around incorrect table
This commit is contained in:
AJR
parent
ddfe149872
commit
6ab1dfb1a8
@ -1883,18 +1883,6 @@ if (MACHINES["MC14411"]~=null) then
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}
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end
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---------------------------------------------------
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--
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--@src/devices/machine/mc2661.h,MACHINES["MC2661"] = true
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---------------------------------------------------
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if (MACHINES["MC2661"]~=null) then
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files {
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MAME_DIR .. "src/devices/machine/mc2661.cpp",
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MAME_DIR .. "src/devices/machine/mc2661.h",
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}
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end
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---------------------------------------------------
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--
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--@src/devices/machine/mc6843.h,MACHINES["MC6843"] = true
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@ -525,7 +525,6 @@ MACHINES["MB89371"] = true
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MACHINES["MB89374"] = true
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--MACHINES["MC14411"] = true
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MACHINES["MC146818"] = true
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MACHINES["MC2661"] = true
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MACHINES["MC6843"] = true
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MACHINES["MC6846"] = true
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MACHINES["MC6852"] = true
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@ -546,7 +546,6 @@ MACHINES["MB89352"] = true
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MACHINES["MB89371"] = true
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MACHINES["MC14411"] = true
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MACHINES["MC146818"] = true
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MACHINES["MC2661"] = true
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MACHINES["MC6843"] = true
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MACHINES["MC6844"] = true
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MACHINES["MC6846"] = true
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@ -22,7 +22,6 @@
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#define RS232_BAUD_38400 (0x0b)
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#define RS232_BAUD_57600 (0x0c)
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#define RS232_BAUD_115200 (0x0d)
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#define RS232_BAUD_7200 (0x0e)
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#define PORT_RS232_BAUD(_tag, _default_baud, _description, _class, _write_line) \
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PORT_START(_tag) \
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@ -34,7 +33,6 @@
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PORT_CONFSETTING( RS232_BAUD_1200, "1200") \
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PORT_CONFSETTING( RS232_BAUD_2400, "2400") \
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PORT_CONFSETTING( RS232_BAUD_4800, "4800") \
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PORT_CONFSETTING( RS232_BAUD_7200, "7200") \
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PORT_CONFSETTING( RS232_BAUD_9600, "9600") \
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PORT_CONFSETTING( RS232_BAUD_14400, "14400") \
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PORT_CONFSETTING( RS232_BAUD_19200, "19200") \
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@ -211,8 +209,7 @@ protected:
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28800,
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38400,
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57600,
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115200,
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7200
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115200
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};
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return values[baud];
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@ -45,7 +45,7 @@ const int com8116_device::divisors_16X_5_0688MHz[16] =
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const int com8116_device::divisors_16X_6_01835MHz[16] =
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{ 7523, 5015, 3420, 2797, 2508, 1881, 1254, 627, 313, 209, 188, 157, 104, 78, 39, 20 };
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// SMC/COM5016(T)-5 and WD WD-1943-05; Synertek SY2661-1 and 2 are NOT the same as this despite using same clock speed, see below
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// SMC/COM5016(T)-5 and WD WD-1943-05; Synertek SY2661-1 and 2 are NOT the same as this despite using same clock speed
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// SMC/COM8156(T)-5 is the same chip but clocked twice as fast and 32x clocks per baud instead of 16x
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// Motorola K1135C is similar, with undivided 4.9152 MHz on pin 1
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// baud rates are 50, 75, 110, 134.5, 150, 300, 600, 1200, 1800, 2000, 2400, 3600, 4800, 7200, 9600, 19200
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@ -80,16 +80,6 @@ const int com8116_device::divisors_16X_4_6080MHz[16] =
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// COM8046 combines the -6 and STD tables into one device as a 32-entry table
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// Synertek SY2661-1 (from http://bitsavers.informatik.uni-stuttgart.de/pdf/synertek/_dataBooks/Synertek_1981-1982_Data_Catalog.pdf page 3-40 (pdf page 139))
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// baud rates are 50, 75, 110, 134.5, 150, 200, 300, 600, 1050, 1200, 1800, 2000, 2400, 4800, 9600, 19200
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const int com8116_device::divisors_16X_4_9152MHz_SY2661_1[16] =
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{ 6144, 4096, 2793, 2284, 2048, 1536, 1024, 512, 292, 256, 171, 154, 128, 64, 32, 16 };
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// Synertek SY2661-2 (from http://bitsavers.informatik.uni-stuttgart.de/pdf/synertek/_dataBooks/Synertek_1981-1982_Data_Catalog.pdf page 3-40 (pdf page 139))
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// baud rates are 45.5, 50, 75, 110, 134.5, 150, 300, 600, 1200, 1800, 2000, 2400, 4800, 9600, 19200, 38400
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const int com8116_device::divisors_16X_4_9152MHz_SY2661_2[16] =
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{ 6752, 6144, 4096, 2793, 2284, 2048, 1024, 512, 256, 171, 154, 128, 64, 32, 16, 8 };
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//**************************************************************************
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// LIVE DEVICE
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//**************************************************************************
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@ -59,8 +59,6 @@ protected:
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static const int divisors_16X_1_8432MHz[16];
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static const int divisors_16X_5_0688MHz_030[16];
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static const int divisors_16X_4_6080MHz[16];
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static const int divisors_16X_4_9152MHz_SY2661_1[16];
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static const int divisors_16X_4_9152MHz_SY2661_2[16];
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// device-level overrides
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virtual void device_start() override;
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@ -1,507 +0,0 @@
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// license:BSD-3-Clause
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// copyright-holders:Curt Coder
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/***************************************************************************
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Motorola MC2661/MC68661 Enhanced Programmable Communications Interface
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***************************************************************************/
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#include "emu.h"
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#include "mc2661.h"
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//#define VERBOSE 1
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#include "logmacro.h"
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//**************************************************************************
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// DEVICE DEFINITIONS
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//**************************************************************************
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DEFINE_DEVICE_TYPE(MC2661, mc2661_device, "mc2661", "MC2661")
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//**************************************************************************
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// MACROS / CONSTANTS
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//**************************************************************************
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uint32_t baud_rates[16] =
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{
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50, 75, 110, 135 /*134.5*/, 150, 300, 600, 1200, 1800, 2000, 2400, 3600, 4800, 7200, 9600, 19200
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};
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enum
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{
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REGISTER_HOLDING = 0,
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REGISTER_STATUS,
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REGISTER_SYNC = REGISTER_STATUS,
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REGISTER_MODE,
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REGISTER_COMMAND
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};
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#define MODE_BAUD_RATE (m_mr[0] & 0x03)
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#define MODE_CHARACTER ((m_mr[0] >> 2) & 0x03)
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#define MODE_PARITY BIT(m_mr[0], 4)
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#define MODE_PARITY_EVEN BIT(m_mr[0], 5)
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#define MODE_TRANSPARENT BIT(m_mr[0], 6)
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#define MODE_SINGLE_SYN BIT(m_mr[0], 7)
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#define MODE_STOP_BITS ((m_mr[0] >> 6) & 0x03)
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#define SYN1 m_sync[0]
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#define SYN2 m_sync[1]
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#define DLE m_sync[2]
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#define COMMAND_TXEN BIT(m_cr, 0)
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#define COMMAND_DTR BIT(m_cr, 1)
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#define COMMAND_RXEN BIT(m_cr, 2)
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#define COMMAND_BREAK BIT(m_cr, 3)
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#define COMMAND_DLE BIT(m_cr, 3)
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#define COMMAND_RESET BIT(m_cr, 4)
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#define COMMAND_RTS BIT(m_cr, 5)
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#define COMMAND_MODE (m_cr >> 6)
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enum
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{
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MODE_NORMAL = 0,
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MODE_ASYNC,
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MODE_LOCAL_LOOP_BACK,
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MODE_REMOTE_LOOP_BACK
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};
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#define STATUS_TXRDY 0x01
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#define STATUS_RXRDY 0x02
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#define STATUS_TXEMT 0x04
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#define STATUS_PE 0x08
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#define STATUS_DLE 0x08
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#define STATUS_OVERRUN 0x10
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#define STATUS_FE 0x20
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#define STATUS_SYN 0x20
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#define STATUS_DCD 0x40
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#define STATUS_DSR 0x80
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//**************************************************************************
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// LIVE DEVICE
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//**************************************************************************
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//-------------------------------------------------
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// mc2661_device - constructor
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//-------------------------------------------------
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mc2661_device::mc2661_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock) :
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device_t(mconfig, MC2661, tag, owner, clock),
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device_serial_interface(mconfig, *this),
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m_write_txd(*this),
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m_write_rxrdy(*this),
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m_write_txrdy(*this),
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m_write_rts(*this),
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m_write_dtr(*this),
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m_write_txemt_dschg(*this),
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m_write_bkdet(*this),
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m_write_xsync(*this),
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m_rxc(0),
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m_txc(0),
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m_sr(0)
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{
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}
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//-------------------------------------------------
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// device_start - device-specific startup
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//-------------------------------------------------
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void mc2661_device::device_start()
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{
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// resolve callbacks
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m_write_txd.resolve_safe();
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m_write_rxrdy.resolve_safe();
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m_write_txrdy.resolve_safe();
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m_write_rts.resolve_safe();
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m_write_dtr.resolve_safe();
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m_write_txemt_dschg.resolve_safe();
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m_write_bkdet.resolve_safe();
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m_write_xsync.resolve_safe();
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// create the timers
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if (m_rxc > 0)
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{
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set_rcv_rate(m_rxc);
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}
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if (m_txc > 0)
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{
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set_tra_rate(m_txc);
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}
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// save state
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save_item(NAME(m_rhr));
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save_item(NAME(m_thr));
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save_item(NAME(m_cr));
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save_item(NAME(m_sr));
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save_item(NAME(m_mr));
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save_item(NAME(m_sync));
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save_item(NAME(m_mode_index));
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save_item(NAME(m_sync_index));
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}
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//-------------------------------------------------
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// device_reset - device-specific reset
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//-------------------------------------------------
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void mc2661_device::device_reset()
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{
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receive_register_reset();
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transmit_register_reset();
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m_mr[0] = m_mr[1] = 0;
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m_sync[0] = m_sync[1] = m_sync[2] = 0;
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m_cr = 0;
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m_sr = 0;
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m_mode_index = 0;
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m_sync_index = 0;
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m_write_txd(1);
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m_write_rxrdy(CLEAR_LINE);
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m_write_txrdy(CLEAR_LINE);
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m_write_rts(1);
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m_write_dtr(1);
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m_write_txemt_dschg(CLEAR_LINE);
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m_write_bkdet(0);
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m_write_xsync(0);
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}
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//-------------------------------------------------
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// tra_callback -
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//-------------------------------------------------
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void mc2661_device::tra_callback()
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{
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m_write_txd(transmit_register_get_data_bit());
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}
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//-------------------------------------------------
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// tra_complete -
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//-------------------------------------------------
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void mc2661_device::tra_complete()
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{
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// TODO
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m_sr |= STATUS_TXRDY;
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m_write_txrdy(ASSERT_LINE);
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}
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//-------------------------------------------------
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// rcv_complete -
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//-------------------------------------------------
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void mc2661_device::rcv_complete()
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{
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// TODO
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receive_register_extract();
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m_rhr = get_received_char();
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m_sr |= STATUS_RXRDY;
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if (is_receive_parity_error())
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m_sr |= STATUS_PE;
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if (is_receive_framing_error())
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m_sr |= STATUS_FE;
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m_write_rxrdy(ASSERT_LINE);
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}
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//-------------------------------------------------
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// read - register read
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//-------------------------------------------------
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uint8_t mc2661_device::read(offs_t offset)
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{
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uint8_t data = 0;
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switch (offset & 0x03)
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{
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case REGISTER_HOLDING:
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data = m_rhr;
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if (!machine().side_effects_disabled())
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{
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m_sr &= ~STATUS_RXRDY;
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m_write_rxrdy(CLEAR_LINE);
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}
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break;
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case REGISTER_STATUS:
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data = m_sr;
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break;
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case REGISTER_MODE:
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data = m_mr[m_mode_index];
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if (!machine().side_effects_disabled())
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{
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m_mode_index++;
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m_mode_index &= 0x01;
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}
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break;
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case REGISTER_COMMAND:
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if (!machine().side_effects_disabled())
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{
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m_mode_index = 0;
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m_sync_index = 0;
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}
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data = m_cr;
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break;
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}
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return data;
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}
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//-------------------------------------------------
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// write - register write
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//-------------------------------------------------
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void mc2661_device::write(offs_t offset, uint8_t data)
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{
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switch (offset & 0x03)
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{
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case REGISTER_HOLDING:
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LOG("MC2661 Transmit Holding Register: %02x\n", data);
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m_thr = data;
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if(COMMAND_TXEN)
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{
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if(COMMAND_MODE != 0x02)
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transmit_register_setup(m_thr);
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m_sr &= ~STATUS_TXRDY;
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m_write_txrdy(CLEAR_LINE);
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}
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if(COMMAND_MODE == 0x02) // loopback - the Wicat will set this after enabling the transmitter
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{
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m_rhr = data;
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m_sr |= STATUS_RXRDY; // pcd expects this
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m_write_rxrdy(ASSERT_LINE);
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}
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break;
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case REGISTER_SYNC:
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LOG("MC2661 Sync Register %u: %02x\n", m_sync_index + 1, data);
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m_sync[m_sync_index] = data;
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m_sync_index++;
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if (m_sync_index == 3) m_sync_index = 0;
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break;
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case REGISTER_MODE:
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LOG("MC2661 Mode Register %u: %02x\n", m_mode_index + 1, data);
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m_mr[m_mode_index] = data;
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if (m_mode_index == 0)
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{
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int data_bit_count = 5 + MODE_CHARACTER;
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parity_t parity;
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if (!MODE_PARITY) parity = PARITY_NONE;
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else if (MODE_PARITY_EVEN) parity = PARITY_EVEN;
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else parity = PARITY_ODD;
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stop_bits_t stop_bits;
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switch (MODE_STOP_BITS)
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{
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case 0:
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default:
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stop_bits = STOP_BITS_0;
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break;
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case 1:
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stop_bits = STOP_BITS_1;
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break;
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case 2:
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stop_bits = STOP_BITS_1_5;
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break;
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case 3:
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stop_bits = STOP_BITS_2;
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break;
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}
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set_data_frame(1, data_bit_count, parity, stop_bits);
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}
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if(m_mode_index == 1)
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{
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uint32_t rx_baud = baud_rates[data & 0x0f];
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uint32_t tx_baud = baud_rates[data & 0x0f];
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if(data & 0x10) // internal receiver clock
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{
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// if((m_mr[0] & 0x03) != 0)
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// rx_baud *= 16;
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}
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else // external receiver clock
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{
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switch(m_mr[0] & 0x03)
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{
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case 0x02:
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rx_baud *= 16;
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break;
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case 0x03:
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rx_baud *= 64;
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break;
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default:
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// x1
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break;
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}
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}
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if(data & 0x20) // internal transmitter clock
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{
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// if((m_mr[0] & 0x03) != 0)
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// tx_baud *= 16;
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}
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else // external transmitter clock
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{
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switch(m_mr[0] & 0x03)
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{
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case 0x02:
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tx_baud *= 16;
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break;
|
||||
case 0x03:
|
||||
tx_baud *= 64;
|
||||
break;
|
||||
default:
|
||||
// x1
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
set_rcv_rate(rx_baud);
|
||||
set_tra_rate(tx_baud);
|
||||
}
|
||||
|
||||
m_mode_index++;
|
||||
m_mode_index &= 0x01;
|
||||
break;
|
||||
|
||||
case REGISTER_COMMAND:
|
||||
LOG("MC2661 Command Register: %02x\n", data);
|
||||
|
||||
m_cr = data & 0xef;
|
||||
|
||||
m_write_dtr(!COMMAND_DTR);
|
||||
m_write_rts(!COMMAND_RTS);
|
||||
|
||||
if (COMMAND_MODE == 0x02) // local loopback
|
||||
{
|
||||
if(COMMAND_DTR && COMMAND_RTS) // CR1 and CR5 must be set to 1 to use local loopback
|
||||
{
|
||||
// probably much more to it that this, but this is enough for the Wicat to be happy
|
||||
m_rhr = m_thr;
|
||||
m_sr |= STATUS_RXRDY;
|
||||
m_write_rxrdy(ASSERT_LINE);
|
||||
return;
|
||||
}
|
||||
}
|
||||
|
||||
if (COMMAND_TXEN)
|
||||
{
|
||||
m_sr |= STATUS_TXRDY;
|
||||
m_write_txrdy(ASSERT_LINE);
|
||||
}
|
||||
else
|
||||
{
|
||||
m_sr &= ~STATUS_TXRDY;
|
||||
m_write_txrdy(CLEAR_LINE);
|
||||
}
|
||||
if (!COMMAND_RXEN)
|
||||
{
|
||||
m_sr &= ~(STATUS_RXRDY | STATUS_FE | STATUS_OVERRUN | STATUS_PE);
|
||||
m_write_rxrdy(CLEAR_LINE);
|
||||
}
|
||||
if (COMMAND_RESET)
|
||||
{
|
||||
m_sr &= ~(STATUS_FE | STATUS_OVERRUN | STATUS_PE);
|
||||
}
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
//-------------------------------------------------
|
||||
// dsr_w - data set ready
|
||||
//-------------------------------------------------
|
||||
|
||||
WRITE_LINE_MEMBER( mc2661_device::dsr_w )
|
||||
{
|
||||
LOG("MC2661 Data Set Ready: %u\n", state);
|
||||
|
||||
if (state)
|
||||
{
|
||||
m_sr &= ~STATUS_DSR;
|
||||
}
|
||||
else
|
||||
{
|
||||
m_sr |= STATUS_DSR;
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
//-------------------------------------------------
|
||||
// dcd_w - data carrier detect
|
||||
//-------------------------------------------------
|
||||
|
||||
WRITE_LINE_MEMBER( mc2661_device::dcd_w )
|
||||
{
|
||||
LOG("MC2661 Data Carrier Detect: %u\n", state);
|
||||
|
||||
if (state)
|
||||
{
|
||||
m_sr &= ~STATUS_DCD;
|
||||
}
|
||||
else
|
||||
{
|
||||
m_sr |= STATUS_DCD;
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
//-------------------------------------------------
|
||||
// cts_w - clear to send
|
||||
//-------------------------------------------------
|
||||
|
||||
WRITE_LINE_MEMBER( mc2661_device::cts_w )
|
||||
{
|
||||
LOG("MC2661 Clear to Send: %u\n", state);
|
||||
}
|
||||
|
||||
|
||||
//-------------------------------------------------
|
||||
// rxrdy_r - receiver ready
|
||||
//-------------------------------------------------
|
||||
|
||||
READ_LINE_MEMBER( mc2661_device::rxrdy_r )
|
||||
{
|
||||
return (m_sr & STATUS_RXRDY) ? ASSERT_LINE : CLEAR_LINE;
|
||||
}
|
||||
|
||||
|
||||
//-------------------------------------------------
|
||||
// txemt_r - transmitter empty
|
||||
//-------------------------------------------------
|
||||
|
||||
READ_LINE_MEMBER( mc2661_device::txemt_r )
|
||||
{
|
||||
return (m_sr & STATUS_TXEMT) ? ASSERT_LINE : CLEAR_LINE;
|
||||
}
|
||||
@ -1,101 +0,0 @@
|
||||
// license:BSD-3-Clause
|
||||
// copyright-holders:Curt Coder
|
||||
/***************************************************************************
|
||||
|
||||
Motorola MC2661/MC68661 Enhanced Programmable Communications Interface
|
||||
|
||||
****************************************************************************
|
||||
_____ _____
|
||||
D2 1 |* \_/ | 28 D1
|
||||
D3 2 | | 27 D0
|
||||
RxD 3 | | 26 Vcc
|
||||
GND 4 | | 25 _RxC/BKDET
|
||||
D4 5 | | 24 _DTR
|
||||
D5 6 | | 23 _RTS
|
||||
D6 7 | MC2661 | 22 _DSR
|
||||
D7 8 | MC68661 | 21 RESET
|
||||
_TxC/XSYNC 9 | | 20 BRCLK
|
||||
A1 10 | | 19 TxD
|
||||
_CE 11 | | 18 _TxEMT/DSCHG
|
||||
A0 12 | | 17 _CTS
|
||||
_R/W 13 | | 16 _DCD
|
||||
_RxRDY 14 |_____________| 15 _TxRDY
|
||||
|
||||
***************************************************************************/
|
||||
|
||||
#ifndef MAME_MACHINE_MC2661_H
|
||||
#define MAME_MACHINE_MC2661_H
|
||||
|
||||
#pragma once
|
||||
|
||||
#include "diserial.h"
|
||||
|
||||
|
||||
class mc2661_device : public device_t,
|
||||
public device_serial_interface
|
||||
{
|
||||
public:
|
||||
// construction/destruction
|
||||
mc2661_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock);
|
||||
|
||||
void set_rxc(int clock) { m_rxc = clock; }
|
||||
void set_txc(int clock) { m_txc = clock; }
|
||||
|
||||
auto txd_handler() { return m_write_txd.bind(); }
|
||||
auto rxrdy_handler() { return m_write_rxrdy.bind(); }
|
||||
auto txrdy_handler() { return m_write_txrdy.bind(); }
|
||||
auto rts_handler() { return m_write_rts.bind(); }
|
||||
auto dtr_handler() { return m_write_dtr.bind(); }
|
||||
auto txemt_dschg_handler() { return m_write_txemt_dschg.bind(); }
|
||||
auto bkdet_handler() { return m_write_bkdet.bind(); }
|
||||
auto xsync_handler() { return m_write_xsync.bind(); }
|
||||
|
||||
uint8_t read(offs_t offset);
|
||||
void write(offs_t offset, uint8_t data);
|
||||
|
||||
DECLARE_WRITE_LINE_MEMBER( dsr_w );
|
||||
DECLARE_WRITE_LINE_MEMBER( dcd_w );
|
||||
DECLARE_WRITE_LINE_MEMBER( cts_w );
|
||||
|
||||
DECLARE_READ_LINE_MEMBER( rxrdy_r );
|
||||
DECLARE_READ_LINE_MEMBER( txemt_r );
|
||||
|
||||
DECLARE_WRITE_LINE_MEMBER( rx_w ) { device_serial_interface::rx_w(state); }
|
||||
|
||||
protected:
|
||||
// device-level overrides
|
||||
virtual void device_start() override;
|
||||
virtual void device_reset() override;
|
||||
|
||||
// device_serial_interface overrides
|
||||
virtual void tra_callback() override;
|
||||
virtual void tra_complete() override;
|
||||
virtual void rcv_complete() override;
|
||||
|
||||
private:
|
||||
devcb_write_line m_write_txd;
|
||||
devcb_write_line m_write_rxrdy;
|
||||
devcb_write_line m_write_txrdy;
|
||||
devcb_write_line m_write_rts;
|
||||
devcb_write_line m_write_dtr;
|
||||
devcb_write_line m_write_txemt_dschg;
|
||||
devcb_write_line m_write_bkdet;
|
||||
devcb_write_line m_write_xsync;
|
||||
|
||||
int m_rxc;
|
||||
int m_txc;
|
||||
|
||||
uint8_t m_rhr;
|
||||
uint8_t m_thr;
|
||||
uint8_t m_cr;
|
||||
uint8_t m_sr;
|
||||
uint8_t m_mr[2];
|
||||
uint8_t m_sync[3];
|
||||
|
||||
int m_mode_index;
|
||||
int m_sync_index;
|
||||
};
|
||||
|
||||
DECLARE_DEVICE_TYPE(MC2661, mc2661_device)
|
||||
|
||||
#endif // MAME_MACHINE_MC2661_H
|
||||
Loading…
Reference in New Issue
Block a user