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Solid State Music - CB1   8080 CPU Board
This was a late but well designed 8080 CPU card. It had features on the board the earlier Altair and IMSAI cards had not.

SSM 8080 CPU Board    

The 8080 ran at 2Mhz. there was room on board for two 2708 EPROMS (which could be disabled).  One wait state could be added for EPROM reading. Interestingly there was also on board 256 bytes of RAM 2141's DIP switch addressable to any 4K boundary.Furthermore there was an 8 bit parallel input port (with status bits) for a keyboard.  The CPU on power up could jump to the onboard EPROM.
The manual for this board can be obtained here


Other Solid State Music S-100 Boards
8K RAM    VB1B   8080 CPU   Z80 CPU    EPROM   IO4    PB1    VB3    IO5   16K RAM    16K (MB10) RAM


This page was last modified on 05/11/2020