Interfacing To An 8-Bit Processor; The Generic 8-Bit Processor System Bus - Epson S1D13704 Technical Manual

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2 Interfacing to an 8-bit Processor

2.1 The Generic 8-bit Processor System Bus

S1D13704
X26A-G-013-02
Although the S1D13704 does not directly support an 8-bit CPU, with minimal external
logic, an 8-bit interface can be achieved.
Typically, the bus of an 8-bit microprocessor is straight forward with minimal CPU and
system control signals. To connect a memory mapped device such as the S1D13704, only
the write, read, and wait control signals, as well as the data and address lines, need to be
interfaced. Since the S1D13704 is a 16-bit device, some external logic is required.
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Epson Research and Development
Vancouver Design Center
Interfacing to an 8-bit Processor
Issue Date: 01/02/12