Delta Tau PMAC2A-PC/104 User Manual

The inputs and outputs on the thumbwheel multiplexer port of either the Acc-1P or the Acc-2P boards 
may be used as discrete, non-multiplexed I/O.  In this case, these I/O lines can be accessed through M-
variables that are defined according to the setup of the address selection jumpers.  Jumper E6 on the Acc-
1P or E5 on the Acc-2P determine which set of the following M-variables are used: 

M40->Y:$C082,8,1 

; SEL0 Output 

M41->Y:$C082,9,1 

; SEL1 Output 

M42->Y:$C082,10,1 

; SEL2 Output 

M43->Y:$C082,11,1 

; SEL3 Output 

M44->Y:$C082,12,1 

; SEL4 Output 

M45->Y:$C082,13,1 

; SEL5 Output 

M46->Y:$C082,14,1 

; SEL6 Output 

M47->Y:$C082,15,1 

; SEL7 Output 

M48->Y:$C082,8,8,U 

; SEL0-7 Outputs treated as a byte 

M50->Y:$C082,0,1 

; DAT0 Input 

M51->Y:$C082,1,1 

; DAT1 Input 

M52->Y:$C082,2,1 

; DAT2 Input 

M53->Y:$C082,3,1 

; DAT3 Input 

M54->Y:$C082,4,1 

; DAT4 Input 

M55->Y:$C082,5,1 

; DAT5 Input 

M56->Y:$C082,6,1 

; DAT6 Input 

M57->Y:$C082,7,1 

; DAT7 Input 

M58->Y:$C082,0,8,U 

; DAT0-7 Inputs treated as a byte 

M40->Y:$C0C2,8,1 

; SEL0 I/O Line 

M41->Y:$C0C2,9,1 

; SEL1 I/O Line 

M42->Y:$C0C2,10,1 

; SEL2 I/O Line 

M43->Y:$C0C2,11,1 

; SEL3 I/O Line 

M44->Y:$C0C2,12,1 

; SEL4 I/O Line 

M45->Y:$C0C2,13,1 

; SEL5 I/O Line 

M46->Y:$C0C2,14,1 

; SEL6 I/O Line 

M47->Y:$C0C2,15,1 

; SEL7 I/O Line 

M48->Y:$C0C2,8,8,U 

; SEL0-7 I/O Lines treated as a byte 

M50->Y:$C0C2,0,1 

; DAT0 I/O Line 

M51->Y:$C0C2,1,1 

; DAT1 I/O Line 

M52->Y:$C0C2,2,1 

; DAT2 I/O Line 

M53->Y:$C0C2,3,1 

; DAT3 I/O Line 

M54->Y:$C0C2,4,1 

; DAT4 I/O Line 

M55->Y:$C0C2,5,1 

; DAT5 I/O Line 

M56->Y:$C0C2,6,1 

; DAT6 I/O Line 

M57->Y:$C0C2,7,1 

; DAT7 I/O Line 

M58->Y:$C0C2,0,8,U 

; DAT0-7 I/O Lines treated as a byte