MuSYS NET/80 SBC
This board was Z80 based with 128K of RAM (banked
switched), a 8253 timer, an RS232 serial port (Zilog SIO's), and a 9519
Interrupt Controller. It was similar to ADC and Teletek SBC boards.
The board was produced in 1981-1982. The NET/82
was a complete computer on a single board, with the exception that there was
no provision for supporting local disk devices. In the multi-processor
architecture for which the NET/82 was designed, disk operations were
controlled by another CPU, which was accessed through a communications
protocol of some sort. Since the NET/82 was designed as an I/O mapped slave
according to the IEEE-696 specification for S-100 computers, the usual
communications method was to exchange data with the bus master processor
controlling the local S-100 bus. That processor could, in turn, be part of a
larger communications network, allowing
an almost unlimited amount of data and external devices to be available to
the user and software associated with an individual NET/82.
The detailed (reconstructed) manual for this board and schematic can be obtained
here.
This page was last modified
on
01/08/2011