Acorn BBC Master 65C102, Руководство пользователя

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INTRODUCTION
What is a co-processor
The job of the co-processor is to run languages such as BASIC,
assembly language, word processing, and to run user programs. The
TUBE handles the two-way communication between the microcomputer and
the co-processor thereby leaving the microcomputer and the co-
processor to continue with their respective tasks.
With the co-processor fitted, the job of the microcomputer is to
serve as an I/O processor, that is, to handle all the inputs and
outputs (keyboard, RS423, text and graphics output to monitors,
printer output, disc drives, cassette recorders, local area network
and so on).
This co-processor consists of a 65C102 microprocessor system with 64
Kbytes of Random Access Memory (RAM). In addition, it contains an
interface between itself and the microcomputer called the TUBE.
From this point on the microcomputer will be referred to as the
I/O processor.
Fitting a co-processor
Note that any modification or upgrade carried out to the printed
circuit board of any Acorn equipment is undertaken at the sole risk
of the person carrying out the modification or upgrade. No claim for
loss or damage to the equipment caused by the modification or
upgrade of the printed circuit board by unqualified personnel shall
be accepted by Acorn Computers limited.
WARNING - A number of the components used within ACORN equipment are
STATIC SENSITIVE. All usual anti-static precautions must be taken to
prevent damage to these devices.
Before attempting this upgrade, please read all the instructions
carefully. If you are in doubt about your ability to carry it out,
the co-processor and the microcomputer should be taken to your
nearest authorised Acorn dealer.
A charge may be levied by the dealer for installing the co-
processor; such a charge shall be entirely at the discretion of the
dealer concerned.
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