NEO-HYCS: Difference between revisions
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(Created page with "thumb thumb Tiny board to fix the V ROM address MSB on PROGBK2R carts. MM311: Reset generator ? Category:Chips") |
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[[File:hycs.png|thumb]] | [[File:hycs.png|thumb]] | ||
Original bodge board from SNK to fix [[V ROM]] selection on a few {{PCB|PROGBK2R}} and {{PCB|PROGBK3R}} based carts: | |||
* [[SNK_vs._Capcom_-_SVC_Chaos]] | |||
* [[Samurai_Shodown_V]] | |||
Apparently used to disable the V1 ROM for a short period at power on, possibly to allow [[NEO-PCM2]] to read the decryption parameters properly. Removing the board causes corrupt sound or games to show a "bank error". | |||
MM311: Mitsumi PST600D reset generator (4.2V threshold). Forces V1 /CS high at startup, then lets the PCM2 signal through. | |||
[[Category:Cartridge systems]] | |||
[[Category:Chips]] | [[Category:Chips]] | ||
Latest revision as of 14:41, 7 December 2022
Original bodge board from SNK to fix V ROM selection on a few PROGBK2R and PROGBK3R based carts:
Apparently used to disable the V1 ROM for a short period at power on, possibly to allow NEO-PCM2 to read the decryption parameters properly. Removing the board causes corrupt sound or games to show a "bank error".
MM311: Mitsumi PST600D reset generator (4.2V threshold). Forces V1 /CS high at startup, then lets the PCM2 signal through.