CHA board
Cartridge PCB which holds the C, V and S ROMs.
List from [MAME's source].
MVS
| Name | Chips | Max C ROM | Max S ROM | Max M ROM |
|---|---|---|---|---|
| CHA-32 | ||||
| CHA-8M | ||||
| CHA-HERO | ||||
| CHA256 | ||||
| CHA256B | ||||
| CHA42G-1 | NEO-ZMC,NEO-273 | 4*1024 | 128 | 128 |
| CHA42G-2 | ||||
| CHA42G-3? | ||||
| CHA42G-3B | ||||
| CHA512Y | ||||
| CHA64-C | NEO-ZMC | |||
| CHAFIO | NEO-CMC42, NEO-CMC50 |
CHA-32
CHA-8M
CHA256
C ROM
Up to 8x 32Mbit ROMs (27C322) can be used for a maximum of 256Mbit C ROM. 27C800/27C160 can also be used depending on jumper config. Size of largest ROM is selected using a pair of jumpers. The rest should be left unconnected.
| ROM size | Jumper A | Jumper B |
|---|---|---|
| 8Mbit | J5 | J6 |
| 16Mbit | J7 | J8 |
| 32Mbit | J9 | J10 |
Pinouts
A NEO-273 and a LS74 are used to address C ROM. LS74 provides the 2 most significant bits. LS139 enables one of four pairs of C ROMs using 2 address inputs depending on which 2 jumpers are connected.
| Jumper | LS139 | LS74 | NEO-273 |
|---|---|---|---|
| J5 | 2(1A) | N/A | 45(A19) |
| J6 | 3(1B) | N/A | 46(A20) |
| J7 | 2(1A) | N/A | 46(A20) |
| J8 | 3(1B) | 9(Q2) | N/A |
| J9 | 2(1A) | 9(Q2) | N/A |
| J10 | 3(1B) | 5(Q1) | N/A |
CHA256B
CHA42G
CHA42G-1
CHA42G-2
CHA42G-3
CHA42G-3B
CHA512Y
CHA64-C
For Neo Print carts.
CHAFIO
- used with NEO-CMC 90G06C7042 or NEO-CMC 90G06C7050
pcb version (1999.6.14) 90G06C7042 - 070 - Zupapa - pcb version (1999.6.14) 90G06C7042 - 251 - King Of Fighters 99 pcb version (1999.6.14) 90G06C7042 - 252 - Ganryu pcb version (1999.6.14) 90G06C7042 - 253 - Garou pcb version (1999.6.14) 90G06C7042 - 254 - Strikers 1945 Plus
CHAFIO REV1.0 (KOF-2001)
CHAFIO
- Max 8x 64Mbits (4Mb x 16) C ROMs
- Max 1x 4Mbits (512Kb x8) M1 ROM
- used only with NEO-CMC 90G06CF7042 and 90G06C7050