PMAC Quick Reference Guide
Appendix F – I/O Suggested M-Variable Definitions 97
General Purpose Inputs and Outputs Definition
Machine Output 1 M1->Y:$FFC2,8,1
Machine Output 2 M2->Y:$FFC2,9,1
Machine Output 3 M3->Y:$FFC2,10,1
Machine Output 4 M4->Y:$FFC2,11,1
Machine Output 5 M5->Y:$FFC2,12,1
Machine Output 6 M6->Y:$FFC2,13,1
Machine Output 7 M7->Y:$FFC2,14,1
Machine Output 8 M8->Y:$FFC2,15,1
Machine Outputs 1-8 treated as byte M9->Y:$FFC2,8,8,U
Machine Input 1 M11->Y:$FFC2,0,1
Machine Input 2 M12->Y:$FFC2,1,1
Machine Input 3 M13->Y:$FFC2,2,1
Machine Input 4 M14->Y:$FFC2,3,1
Machine Input 5 M15->Y:$FFC2,4,1
Machine Input 6 M16->Y:$FFC2,5,1
Machine Input 7 M17->Y:$FFC2,6,1
Machine Input 8 M18->Y:$FFC2,7,1
Machine Inputs 1-8 treated as byte M19->Y:$FFC2,0,8,U
PMAC Built-in timers Definition
Timer register 1 (8388608/I10 msec) M90->X:$0700,0,24,S
Timer register 2 (8388608/I10 msec) M91->Y:$0700,0,24,S
Timer register 3 (8388608/I10 msec) M92->X:$0701,0,24,S
Timer register 4 (8388608/I10 msec) M93->Y:$0701,0,24,S
Open memory; cleared to 0 on power-
on/reset
$0770 - $077F
Open registers (stored in battery-backed
RAM)
$07F0 - $07FF
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