27C801 without SWAP BIN

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Kayumba
Posts: 87
Joined: Sun Mar 01, 2020 2:36 am

27C801 without SWAP BIN

Post by Kayumba » Tue Sep 01, 2020 12:18 pm

Hi,

Can we use .SMC file to program 27C801 without doing SWAP BIN ?

If I keep all pin outputs like in schema :
Will it works ? Or we allaways have to do SWAP BIN method ?

Image

27C801 pin1 = > 44 (A19) HiROM , 45 (A19) LoROM
27C801 pin2 = > 41 (A16) HiROM , 42 (A19) LoROM
27C801 pin3 = > 40 (A15) HiROM , 41 (A15) LoROM
27C801 pin30 = > 42 (A17) HiROM , 43 (A17) LoROM
27C801 pin31 = > 43 (A18) HiROM , 44 (A18) LoROM

And about pin 24 i'am not sure...
27C801 pin24 = > ? HiROM , ? LoROM

Where is *OE ? on cartridge pins?
Is it pin 23 (/RD) ?

Kayumba
Posts: 87
Joined: Sun Mar 01, 2020 2:36 am

Re: 27C801 without SWAP BIN

Post by Kayumba » Thu Sep 17, 2020 10:31 pm

If some one are need this informations :
M27C801 pin 24 (/OE) -----> Cartridge connector pin 23 (/RD)
Or
M27C801 pin 24 (/OE) -----> Cartridge connector pin 49 (/OE)
Two version will works.

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