MSI-NC920 PC/104 48-Line Digital I/O Board |
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The MSI-NC920
provides 48 TTL
level input/output lines arranged in two 24-bit digital
I/O groups. Each group emulates a 8255 PPI (programmable peripheral
interface)
operating in mode 0 with a higher output drive capacity than a standard
8255 device. Each group is divided into three 8-bit ports which can be
configured to function as an input or an output. Bit 0 of port C can be
configured to generate an interrupt on IRQ 5, 9(2), 10, 11, 12 or 15
with triggering
on either the rising or falling edge. I/O is provided by two 50-pin
connectors
that are OPTO-22 compatible. The unit is an 8-bit stackthrough PC/104
with
I/O mapped 16-bit addressing for which addresses A3 thru A9 are switch
selectable. Includes PC/104 spacers. Requires +5V only. MSI-NC920 User Manual (Adobe Acrobat Format) Email: staff@microcomputersystems.com
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