Category:CPS2: Difference between revisions

PAL3

Deals with addressing the ROMS, 4(5) different versions. Original part is PALCE16V8H-15, 15 is the speed rating, 15ns.

• Pin 2 via jumpers go to A20 on eprom 13,14,15,16
• pin 3 go to A19 on eprom 13,14,15,16

• pin 5 via jumpers go to A20 on eprom 17,18,19,20
• pin 6 go to A19 on eproms 17,18,19,20

• pin 7 via jumpers go to A20 on eprom 11,12
• pin 8 go to A19 on eprom 11,12

PAL/GAL images

http://www.jammarcade.net/pal-dumps/

Audio Program

• location 1 & 2.
• Eprom size is always 128kb/1mbit.
• Function of pin 2 can be either A16 or GND.
• Function of pin 26 can be either A16 or GND.

To use a 27c1001/27c010, A16 goes to pin 2 and GND 26 - this translates to a COOC (closed/open)configuration for JP1,2,3,4 and JP5,6,8,9.

Main Program

• location 3-10.
• Eprom size is always 512kb/4mbit.

Q-Sound samples

• location 11(JP10,JP11) and 12(JP12,JP13)
• Eprom size can be 2mb/16mbit or 4mb/32mbit.
• Function of pin 32 can be be either A20 or VCC.

To use 27c160, pin 32 needs to be VCC - this means closed/open.

To use 27c322, pin 32 is A20 - this means open/cosed

Graphics

• Location 13-20.
• Eprom size can be 512kb/4mbit, 1mb/8mbit, 2mb/16mbit or 4mb/32mbit.
• Function of pin 32 can be be either A20 or VCC.

Jumpers

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A common piece used by Capcom is MX23c1610, this piece has byte mode select pin #32, this need to be pulled high for the piece to opearate in 16 bit mode.

Known maskroms

• KM23c32000A-15, 32mbit, Samsung, 15ns, A20 on pin32
• MX23c1610, 16mbit, Macronix, ?, Word select on pin #32
• km23c8100C, 8 mbit, Samsung, 15ns, word select on pin #32

9J PAL (BGSB3) Versions