Parallel Port to 8255 Wiring

Parallel				8255
Port
				  +5 VDC - Term 26
Data                              GRD    - Term 7
Port

DATA_7  9<----------------------- 27  D7
DATA_6  8<----------------------- 28  D6
DATA_5  7<----------------------- 29  D5
DATA_4  6<----------------------- 30  D4

DATA_3  5<----------------------- 31  D3
DATA_2  4<----------------------- 32  D2
DATA_1  3<----------------------- 33  D1
DATA_0  2<----------------------- 34  D0

Control
Port

/SEL_IN 17<----------------------- 35  RESET
INIT    16<----------------------- 8   A1
/AUTOF  14<----------------------- 9   A0
/STROBE  1<----------------------- 36  /WR


GND    18<--------- GRD

        		+5VDC ---- 5   RD
			GRD ------ 6   /CS

***********

8255   		Ouputs to External Peripherals

PC7  10
PC6  11
PC5  12
PC4  13
PC3  17
PC2  16
PC1  15
PC0  14

PB7  25
PB6  24
PB5  23
PB4  22
PB3  21
PB2  20
PB1  19
PB0  18

PA7  37
PA6  38
PA5  39
PA4  40
PA3   1
PA2   2
PA1   3
PA0   4