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Truco-Tron: Identified the last unknown IC (U15).

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Added Technical notes. [Cristian Arias, Roberto Fresca]
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Roberto Fresca 2014-02-13 06:35:41 +00:00
parent e5e7dc5b61
commit 3b41f5f4fb
1 changed files with 23 additions and 23 deletions
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46
src/mame/drivers/truco.c
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@ -64,28 +64,28 @@
IC's Reverse Engineering....
MARKED PINS ID TYPE DETAILS
MARKED PINS ID TYPE PART DETAILS
- U1 : 40-pin IC YES CPU MOTOROLA M6809EP (8-bit microprocessor)
- U2 : 28-pin IC YES ROM M27128A (NMOS 128K 16K x 8 UV EPROM)
- U3 : 28-pin IC YES ROM M27128A (NMOS 128K 16K x 8 UV EPROM)
- U4 : 40-pin IC YES I/O ST EF6821P (PIA: Peripheral Interface Adapter)
- U5 : 16-pin IC YES TTL ST M74HC157B1 (Quad 2 Channel Multiplexer)
- U6 : 16-pin IC YES TTL ST M74HC157B1 (Quad 2 Channel Multiplexer)
- U7 : 16-pin IC YES TTL ST M74HC157B1 (Quad 2 Channel Multiplexer)
- U8 : 16-pin IC YES TTL ST M74HC157B1 (Quad 2 Channel Multiplexer)
- U9 : 40-pin IC YES CRTC HD6845 / UM6845 / GS GM68A45S (CRT Controller)
- U10: 28-pin IC YES RAM KM62256BLP-10 (32K x 8 Low Power CMOS Static RAM)
- U11: 14-pin IC YES TTL SN74LS95BN (4-bit Parallel-Access Shift Registers)
- U12: 14-pin IC YES TTL SN74LS95BN (4-bit Parallel-Access Shift Registers)
- U13: 20-pin IC YES TTL SN74LS244N (Octal Buffers and Line Drivers with 3-State outputs)
- U14: 20-pin IC YES TTL HD74LS374 (Octal D-type Flip-Flops with noninverted 3-state output)
- U15: 20-pin IC NO PLD ???
- U16: 20-pin IC YES PLD PALCE16V8H-25 (EE CMOS Zero-Power 20-Pin Universal Programmable Array Logic)
- U17: 14-pin IC YES TTL HD74LS00P (Quadruple 2-Input NAND Gates)
- U18: 14-pin IC YES TTL KS74HCTLS86N (Quad 2−Input Exclusive OR Gate)
- U19: 16-pin IC YES WATCHDOG MAXIM MAX691 (Microprocessor Supervisory Circuits)
- U20: 16-pin IC YES DARLINGTON ULN2003 (7 NPN Darlington transistor pairs with high voltage and current capability)
- U1 : 40-pin IC YES CPU MOTOROLA M6809EP 8-bit microprocessor.
- U2 : 28-pin IC YES ROM M27128A (or M27512FI) NMOS 128K 16K x 8 UV EPROM (or 64K x 8).
- U3 : 28-pin IC YES ROM M27128A (or M27512FI) NMOS 128K 16K x 8 UV EPROM (or 64K x 8).
- U4 : 40-pin IC YES I/O ST EF6821P PIA: Peripheral Interface Adapter.
- U5 : 16-pin IC YES TTL ST M74HC157B1 Quad 2 Channel Multiplexer.
- U6 : 16-pin IC YES TTL ST M74HC157B1 Quad 2 Channel Multiplexer.
- U7 : 16-pin IC YES TTL ST M74HC157B1 Quad 2 Channel Multiplexer.
- U8 : 16-pin IC YES TTL ST M74HC157B1 Quad 2 Channel Multiplexer.
- U9 : 40-pin IC YES CRTC HD6845 / UM6845 / GS GM68A45S CRT Controller.
- U10: 28-pin IC YES RAM KM62256BLP-10 32K x 8 Low Power CMOS Static RAM.
- U11: 14-pin IC YES TTL SN74LS95BN 4-bit Parallel-Access Shift Registers.
- U12: 14-pin IC YES TTL SN74LS95BN 4-bit Parallel-Access Shift Registers.
- U13: 20-pin IC YES TTL SN74LS244N Octal Buffers and Line Drivers with 3-State output.
- U14: 20-pin IC YES TTL HD74LS374 Octal D-type Flip-Flops with noninverted 3-state output.
- U15: 20-pin IC YES PLD PALCE16V8H-25 EE CMOS Zero-Power 20-Pin Universal Programmable Array Logic.
- U16: 20-pin IC YES PLD PALCE16V8H-25 EE CMOS Zero-Power 20-Pin Universal Programmable Array Logic.
- U17: 14-pin IC YES TTL HD74LS00P Quadruple 2-Input NAND Gates.
- U18: 14-pin IC YES TTL KS74HCTLS86N Quad 2−Input Exclusive OR Gate.
- U19: 16-pin IC YES WATCHDOG MAXIM MAX691 Microprocessor Supervisory Circuits.
- U20: 16-pin IC YES DARLINGTON ULN2003 7 NPN Darlington transistor pairs with high voltage and current capability.
M6809
@ -260,9 +260,9 @@ WRITE_LINE_MEMBER(truco_state::pia_irqb_w)
*******************************************/
static ADDRESS_MAP_START( main_map, AS_PROGRAM, 8, truco_state )
AM_RANGE(0x0000, 0x17ff) AM_RAM /* General purpose RAM */
AM_RANGE(0x0000, 0x17ff) AM_RAM /* General purpose RAM */
AM_RANGE(0x1800, 0x7bff) AM_RAM AM_SHARE("videoram") /* Video RAM */
AM_RANGE(0x7c00, 0x7fff) AM_RAM AM_SHARE("battery_ram") /* Battery backed RAM */
AM_RANGE(0x7c00, 0x7fff) AM_RAM AM_SHARE("battery_ram") /* Battery backed RAM */
AM_RANGE(0x8000, 0x8003) AM_DEVREADWRITE("pia0", pia6821_device, read, write)
AM_RANGE(0x8004, 0x8004) AM_DEVWRITE("crtc", mc6845_device, address_w)
AM_RANGE(0x8005, 0x8005) AM_DEVREADWRITE("crtc", mc6845_device, register_r, register_w)