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Added partial PPI's connections and CPU clock from crystal diagrams.
This commit is contained in:
Roberto Fresca 2023-09-17 06:08:38 +02:00
parent b0b3508252
commit a7003548f0
1 changed files with 88 additions and 5 deletions
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93
src/mame/misc/katosmedz80.cpp
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@ -14,15 +14,14 @@
***************************************************************************************************
PCB is unmarked
Main components:
Sharp LH0080B Z80B-CPU
12.000 MHz XTAL
HM6116LP-3 Static RAM
2x NEC D71055C
OKI M6295GS
4-DIP bank
4-DIP switches bank
***************************************************************************************************
@ -80,10 +79,12 @@
***************************************************************************************************
This driver was made reverse-engineering the game code with some educated guesses, as the clocks
for all devices. The only element we had, was a PCB picture. All the rest was figured out, as the
This driver was made reverse-engineering the game code with some educated guesses.
The only element we had, was a PCB picture. All the rest was figured out, as the
multiple output lines connections to stepper motors, lamps, 7seg LEDs, etc...
Will check lot of things with the hardware once available.
***************************************************************************************************
@ -145,6 +146,88 @@
(can't see if are I's or 1's...)
***************************************************************************************************
Measurements...
(partial)
.------v------.
--(PA3)-|01 40|-(PA4)--
--(PA2)-|02 IC10 39|-(PA5)--
--(PA1)-|03 38|-(PA6)--
--(PA0)-|04 PPI#0 37|-(PA7)--
--(/RD)-|05 36|-(/WR)--
--(/CS)-|06 35|-(RES)--
--(GND)-|07 34|-(D0)--
---(A1)-|08 33|-(D1)--
---(A0)-|09 NEC 32|-(D2)--
--(PC7)-|10 31|-(D3)--
--(PC6)-|11 D71055C 30|-(D4)--
--(PC5)-|12 29|-(D5)--
--(PC4)-|13 28|-(D6)--
--(PC0)-|14 27|-(D7)--
--(PC1)-|15 26|-(Vcc)--
--(PC2)-|16 25|-(PB7)--
--(PC3)-|17 24|-(PB6)--
--(PB0)-|18 23|-(PB5)--
--(PB1)-|19 22|-(PB4)--
--(PB2)-|20 21|-(PB3)--
'-------------'
.------v------.
DSW#4 --(PA3)-|01 40|-(PA4)--
DSW#3 --(PA2)-|02 IC5 39|-(PA5)--
DSW#2 --(PA1)-|03 38|-(PA6)--
DSW#1 --(PA0)-|04 PPI#1 37|-(PA7)--
--(/RD)-|05 36|-(/WR)--
--(/CS)-|06 35|-(RES)--
--(GND)-|07 34|-(D0)--
---(A1)-|08 33|-(D1)--
---(A0)-|09 NEC 32|-(D2)--
--(PC7)-|10 31|-(D3)--
--(PC6)-|11 D71055C 30|-(D4)--
--(PC5)-|12 29|-(D5)--
--(PC4)-|13 28|-(D6)--
--(PC0)-|14 27|-(D7)--
--(PC1)-|15 26|-(Vcc)--
--(PC2)-|16 25|-(PB7)--
--(PC3)-|17 24|-(PB6)--
--(PB0)-|18 23|-(PB5)--
--(PB1)-|19 22|-(PB4)--
--(PB2)-|20 21|-(PB3)--
'-------------'
CPU Clock...
Binary divisor 12 --> 6 MHz.
.-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-.
.-------. | |
| Xtal | | CLK LH0080B Z80B |
| 12MHz | | 6 |
'--+-+--' '-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-'
| | |
+ +-. .---------------------. |
| | | | | |
.-+-+-+-+-+-+-+-. .-+-+-+-+-+-+-+-+-.
| 1 1 1 1 | | 1 0 |
| 3 2 1 0 | | 0 9 |
| | | |
'-+-+-+-+-+-+-+-' '-+-+-+-+-+-+-+-+-'
74HC04 74HC4040
***************************************************************************************************
TODO:
- Hook the cats eye effect when the arms are hit.
- Figure out the IN1: 0x80 currently mapped in the key "I".
- Find if there is some type of reward... tickets, medals, etc. (doesn't seems to be one)
**************************************************************************************************/