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Jade Computer Products -   Serial/Parallel Interrupt Board
The board was often called the Jade PSIO board.  It was a vast improvement in their earlier 1P2S board


The Jade SPIO Serial/Parallel/Intemipt Controller board was an IEEE S-100 standard multi-user communications board designed around the Zilog Z80 peripheral chip line. It featured two Z80-SIO Serial I/O controllers, up to four Z80-CTC Counter/Timer chips, and a Z80-PIO Parallel I/O controller chip.  It was am extremely useful and powerful serial I/O board.

The manual for this board can be obtained here.


Other Jade S-100 Boards
Bus Probe    8K Static RAM   Z80 CPU   64K RAM   FDC   1P2S   PSIO


This page was last modified on 10/25/2013