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S3F80JB CONTROL REGISTERS
4-9
CMPSEL — Comparator Input Selection Register EBH Set1 Bank1
Bit Identifier .7 .6 .5 .4 .3 .2 .1 .0
Reset Value
– – – – 0 0 0 0
Read/Write
– – – – R/W R/W R/W R/W
Addressing Mode
Register addressing mode only
.7– .4
Not used for S3F80JB.
.3 P2.7 Function Selection Bit
0 Normal I/O selection
1 Alternative function enable: CIN3
.2 P2.6 Function Selection Bit
0 Normal I/O selection
1 Alternative function enable: CIN2
.1 P2.5 Function Selection Bit
0 Normal I/O selection
1 Alternative function enable: CIN1
.0 P2.4 Function Selection Bit
0 Normal I/O selection
1 Alternative function enable: CIN0
NOTE: If a bit of CMPSEL is set to “1”(Comparator input is selected), the port pin is operated as comparator input
regardless of the P2CONH settings.