Vi-2-7. System Bus - Canon A-200 series Service Manual

VI-2-7. System Bus
The CPU transfers data between I/O devices and memory through three buses. First of them
is the address bus and it defines I/O or memory addresses. The data bus sends data through
it. The command bus determines functions of address and data buses.
As previously mentioned, basically the A-200 has the 16-bit-bus constructions, however, it can
access to a memory board or optional board designed for the IBM-PC that are constructed with
8-bit bus.
Figure 6-12 shows the bus construction.
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