CHA board: Difference between revisions

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Revision as of 15:12, 13 December 2011

List from [MAME's source].

CHA boards

Test Test2
A B

MVS

CHA boards

CHA-32

CHA-8M

CHA42G

CHA42G-1

CHA42G-2

CHA42G-3

CHA42G-3B

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

CHA512Y

  • Max 8 8MiB C ROMs
  • Max 128KiB M1 ROM
  • Max 128KiB S1 ROM
  • NEO-273
  • NEO-ZMC
  • LS139,LS174

CHAFIO

  • used with NEO-CMC 90G06C7042 or NEO-CMC 90G06C7050

MVS CHAFIO REV1.0 (KOF-2001)

CHAFIO (SNK 2002)

CHAFIO

  • Max 8x 64Mbits (4Mb x 16) C ROMs
  • Max 1x 4Mbits (512Kb x8) M1 ROM
  • used only with NEO-CMC 90G06CF7042 and 90G06C7050