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DigiBoard Intelligent Serial Communications Boards
PC/16e Boards
The PC/16e is the economy version of the PC/16i. It has 64K of dual ported
memory, and a 10MHz 80C186 microprocessor. It is fully compatible with the
PC/Xi line, but is available only with an RS-232 interface, and there is no
synchronous port option.
MC/Xi Boards
The MC/Xi board is actually two boards, the MC/Xi Processor, and an I/O Mate
that plug together to form a unit which occupies a single Micro Channel slot.
The Processor board (or “motherboard”) is common to all versions of the
MC/Xi, and contains the 80C186 microprocessor and 256K of dual-ported
RAM. The I/O mate (or “daughter card”) contains the actual interfacing
hardware (communications chips, line drivers and receivers, connectors, etc) and
Read Only Memory (ROM) which are unique to the various MC/Xi
configurations.
MC/Xi boards are available with I/O Mates to support four, eight or sixteen
ports with RS-232 or RS-422 interfaces. The MC/Xi+ (four or eight ports) has a
synchronous port in addition to the asynchronous ports (see page 58 for informa-
tion about the synchronous port).
IMPORTANT! This manual is for MC/Xi boards with part number
30001224. This number can be found next to the serial number of the
Processor board. The diagram on page 20 points out the location of the
part number.
