B&B Electronics PIOC manual Register Functions and Pinouts, Base 378H, Status 379H, Control 37AH

Table 5 - Register Functions and Pinouts

BIT	Base (378H)		Status (379H)		Control (37AH)
	OUTPUT	INPUT	OUTPUT	INPUT	OUTPUT	INPUT
0	2	2	X	X	1	1
1	3	3	X	X	14	14
2	4	4	X	X	16	16
3	5	5	X	15	17	17
4	6	6	X	13	See Note 2	See Note2
5	7	7	X	12	See Note 3	See Note 3
6	8	8	X	10	X	X
7	9	9	X	11	X	X

NOTE 1: An "X" means no connection to any DB-25 pins.

NOTE 2: Bit 4 of the Control Register (37AH) as an output is used to control IRQ7. When this bit is high, IRQ7 is enabled and when this bit is low, IRQ7 is disabled. As an input this reads the status of the Interrupt Enable.

NOTE 3: This bit is used to control the direction of the Base Register (378H). Outputting a “1” to this bit defines the lines as inputs. Outputting a “0”, which is default, to this bit defines the lines as outputs.

6Documentation Number PIOC2595 Manual

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