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alpha68k_n.cpp: improved Kyros no Yakata PCB documentation [Guru]

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Ivan Vangelista 2020-08-24 18:19:40 +02:00
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src/mame/drivers/alpha68k_n.cpp
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@ -17,58 +17,115 @@
Kyros no Yakata
Alpha Denshi, 1986
PCB Layout:
PCB Layout
----------
Main Board
(no PCB number)
|----------------------------------------------------------|
| |
| 0.1T 24MHz |
| |
| 15.3T |
| PROMG.4R 5814 |
| 16.5T PROMR.5R PROMH.5P 5814 DSW1(8) |
| PROMB.6R PROML.6P |
| 17.7T MCU |
| 2016 2016 |
| 18.9T 9.9S 8.9R 2016 2016 |
| |
| 15.3T 5814 |
| PROMG.4R SW1 | | 1|
| 16.5T PROMR.5R PROMH.5P 5814 | | 8|
| PROMB.6R PROML.6P | | W|
| 17.7T 8511 | | A|
| 2016 2016 | | Y|
| 18.9T 9.9S 8.9R 2016 2016 | | |
| | | |
| 19.11T 68000 2016 2.10C 4.10A |
| 14.12R 12.12N 2016 |
| 20.13T 13.12P 11.12M 1.13C 3.13A |
| |
|CN |
|----------------------------------------------------------|
Notes:
68000 clock - 6.000MHz [24/4]
2016 - 2kx8 SRAM
5814 - 2kx8 SRAM
CN - 18-pin flat cable connector joining to sound PCB
| - ALPHA-INPUT84 custom ceramic module (x2)
SW1 - 8-position DIP Switch
VSync - 60Hz
HSync - 15.20kHz
8511 - Alpha 8511 Microcontroller at location 7C. '8511' is silkscreened on the PCB.
Clock input 3.000MHz [24/8] (measured on pin 5).
The chip is pin-compatible with Motorola MC68705U3, Motorola MC6805U2
and Hitachi HD6805U1. The 4k MC68705U3 dump in MAME is from a bootleg PCB.
Sound Board
-----------
SOUND BOARD NO.60MC01
|---------------------|
| 40174 324 UPC1181|
| 4013 VOL VOL |
| YM3014 324 6|
| W|
| YM2203 AY-3-8910 A|
| Y|
| AY-3-8910 |
| |
| |
| YM3014 |
| |
| YM2203 AY-3-8910 |
| |
| AY-3-8910 |
| |
| |
| DIP28 |
| |
| 2.1F 2114 |
| 2114 |
| 1.1D 16MHz |
| |
| Z80 |
| |
|CN |
|---------------------|
Notes:
68k clock: 6.000MHz
Z80 clock: 4.000MHz
VSync: 60Hz
HSync: 15.20kHz
AY-3-8910 clock: 2.000MHz
YM2203 clock: 2.000MHz
Unknown MCU clock: 3.000MHz (measured on pin 5)
Z80 clock - 4.000MHz [16/4]. The actual chip is a NEC D780C-1
AY-3-8910 clock - 2.000MHz [16/8]
YM2203 clock - 2.000MHz [16/8]
YM3014 - Yamaha YM3014 DAC. Clock input 1.33333MHz [16/12]
UPC1181 - Power AMP IC
324 - LM324 Quad Op Amp
2114 - 1kx4 SRAM
40xx - 4000-series logic chips
CN - 18-pin flat cable connector joining to main PCB
DIP28 - Empty socket
PCB Pinout
----------
18-WAY Connector (Main)
Parts Solder
-----------------
+5V A1 B1 +5V
+5V A2 B2 +5V
1P UP A3 B3 2P DOWN
1P DOWN A4 B4 2P RIGHT
1P RIGHT A5 B5 2P LEFT
1P LEFT A6 B6 2P BUTTON 1
1P BUTTON 1 A7 B7 -
1P BUTTON 2 A8 B8 -
- A9 B9 COIN 1
1P START A10 B10 COIN 2
2P UP A11 B11 2P BUTTON 2
GREEN A12 B12 -
BLUE A13 B13 2P START
RED A14 B14 -
SYNC A15 B15 -
GND A16 B16 GND
GND A17 B17 GND
GND A18 B18 GND
6-WAY Connector (Sound)
Parts Solder
-----------------
+12V A1 B1 +12V
- A2 B2 -
+5V A3 B3 +5V
SPK+ A4 B4 SPK+
SPK- A5 B5 GND
GND A6 B6 GND
***************************************************************************/
#include "emu.h"
#include "includes/alpha68k.h"