User`s manual

CBM-202PC-04 User’s Manual
21 CITIZEN
4.12 Parallel Interface Circuit
The Gate Array ports are mainly used to provide an 8-bit parallel interface.
When the parallel interface is not used, pull up STB(Pin 52) of the Gate Array with a 10k
resistor. STB(Pin 87) of the CPU should be connected to INTR(Pin 56) of the Gate Array or
pulled up with a 10k resistor.
1) Circuit