RAMCard Hardware Details
This section describes how RAMCard handles its functions and indicates its States.
The connector cable provides the RAMCard memory chips access to the multiplexed addresses and to a timing signal which is not available through the 50 pin I/O
Addresses for RAMCard memory chips are provided by the Apple motherboard address mux. Data in and out for the single displaced chip (which is U9 on RAMCard) are routed through the connector cable. Data in and out for the other eight chips on RAMCard (in sockets U1- U8) are routed through the I/O
The decoding of the addresses and the storage of the state for each function are performed by the ICs in sockets
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