How does the Battery SRAM normally work on the Genesis?

"4. Battery Backed up RAM Games

When A21 goes high, then the chip select (*CS) of the battery backed
up RAM is active (low). Just connect *CS, *OE, *WE and the rest of
the address and data lines to the SRAM."

Just wondering has anyone found any of this to be contradictory for any games.

Also I have inspected Sonic 3 and noticed it uses a RAMTRON chip that they no longer seem to supply info on. I doubt regular SRAM saves will work for that and just wondering if thats correct or can a SRAM in place of that RAMTRON non-volatile chip work fine?

• Also how big does the SRAM need to be? Cryect 18:07:37 12/16/01 (5) responses
  • Re: Also how big does the SRAM need to be? Jon 20:31:14 12/16/01 (4) responses
    • Re: Also how big does the SRAM need to be? John 21:24:47 12/16/01 (3) responses
      • In Sonic 3 Cryect 23:00:13 12/16/01 (0) responses
      • Re: Also how big does the SRAM need to be? John 21:29:42 12/16/01 (1) response
        • Re: Also how big does the SRAM need to be? John 21:31:09 12/16/01 (0) responses

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Message	> All I know mainly is this from the gamemedic info thats out there. > "4. Battery Backed up RAM Games > When A21 goes high, then the chip select (*CS) of the battery backed > up RAM is active (low). Just connect *CS, *OE, *WE and the rest of > the address and data lines to the SRAM." > Just wondering has anyone found any of this to be contradictory for any games. > Also I have inspected Sonic 3 and noticed it uses a RAMTRON chip that they no longer seem to supply info on. I doubt regular SRAM saves will work for that and just wondering if thats correct or can a SRAM in place of that RAMTRON non-volatile chip work fine?
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