OPT‐056C　I/Oマップ・コネクタ配列表・入出力回路

■I/O Map

A2	A1	A0	I/O Write	I/O Read
1 1 1 1	1 1 0 0	1 0 1 0	Command to 8255A (J2) Data to 8255A PC (J2) Data to 8255A PB (J2) Data to 8255A PA (J2)	(Illegal Condition) - - -
0 0 0 0	1 1 0 0	1 0 1 0	Command to 8255A (J1) - - -	(Illegal Condition) Data from 8255A PC (J1) Data from 8255A PB (J1) Data from 8255A PA (J1)

■Connector J1

PIN#	SIGNAL	PIN#	SIGNAL
1 3 5 7 9 11 13 15 17 19 21 23 25 27 29 31 33	PA0 PA2 PA4 PA6 PA-外部電源 PB0 PB2 PB4 PB6 PB-外部電源 PC0 PC2 PC4 PC6 PC-外部電源 - -	2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34	PA1 PA3 PA5 PA7 - PB1 PB3 PB5 PB7 - PC1 PC3 PC5 PC7 - - -

■Connector J2

PIN#	SIGNAL	PIN#	SIGNAL
1 3 5 7 9 11 13 15 17 19 21 23 25 27 29 31 33	PA0 PA2 PA4 PA6 PA-外部電源 PB0 PB2 PB4 PB6 PB-外部電源 PC0 PC2 PC4 PC6 PC-外部電源 - -	2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34	PA1 PA3 PA5 PA7 PA-外部GND PB1 PB3 PB5 PB7 PB-外部GND PC1 PC3 PC5 PC7 PC-外部GND - -

■Input Circuit

■Output Circuit