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-rw-r--r--src/mame/drivers/alpha68k_n.cpp113
1 files changed, 85 insertions, 28 deletions
diff --git a/src/mame/drivers/alpha68k_n.cpp b/src/mame/drivers/alpha68k_n.cpp
index 8c935975d78..f96df81f754 100644
--- a/src/mame/drivers/alpha68k_n.cpp
+++ b/src/mame/drivers/alpha68k_n.cpp
@@ -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"