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5-3
Section
I/O Allocation for CPM2C PCs
327
Expansion I/O Unit with 10 I/O Points
CPM2C-10EDR
Inputs
m+1
15
14
13
12
11
10
09
08
07
06
05
04
03
02
01
00
6 inputs
Word (m+1), bit 00
to
Word (m+1), bit 05
4 outputs
Word (n+1), bit 00
to
Word (n+1), bit 03
Outputs
n+1
Do not use
Bits
Expansion I/O Unit with 20 I/O Points
CPM2C-20EDR
Inputs
m+1
15
14
13
12
11
10
09
08
07
06
05
04
03
02
01
00
12 inputs
Word (m+1), bit 00
to
Word (m+1), bit 11
8 outputs
Word (n+1), bit 00
to
Word (n+1), bit 07
Outputs
n+1
Do not use
Bits
Expansion I/O Units with 24 I/O Points
CPM2C-24EDTC
CPM2C-24EDT1C
CPM2C-24EDTM
CPM2C-24EDT1M
Inputs
m+1
15
14
13
12
11
10
09
08
07
06
05
04
03
02
01
00
16 inputs
Word (m+1), bit 00
to
Word (m+1), bit 15
8 outputs
Word (n+1), bit 00
to
Word (n+1), bit 07
Outputs
n+1
Bits