Epson S1D13705 - Manual (Page 554)

Page 8 Epson Research and Development
Vancouver Design Center
S1D13705 Interfacing to an 8-bit Processor
X27A-G-015-01 Issue Date: 01/12/20
2 Interfacing to an 8-bit Processor
2.1 The Generic 8-bit Processor System Bus
Although the S1D13705 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 S1D13705, only
the write, read, and wait control signals, as well as the data and address lines, need to be
interfaced. Since the S1D13705 is a 16-bit device, some external logic is required.