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Chapter 30 I/O Ports
3.Port Register Settings
■ P27: The functions of Port 27 are controlled by PFR27 and EPFR27
P27[7:0] is input/output for Stepper Motor PWM output signals and Comparator Inputs SMC2M, SMC2P,
SMC1M, SMC1P of channels 0 and 1, and A/D converter analogue inputs AN[23:16]. Otherwise, the port can be
used as general purpose port.
PFR27.7 0 - Port is in general purpose port mode.
1 - Port is in resource function mode:
EPFR27.7 0 - Resource function is SMC2M1 output, CMP1 and/or AN23 input if selected
1 - Resource function is AN23 input
PFR27.6 0 - Port is in general purpose port mode.
1 - Port is in resource function mode:
EPFR27.6 0 - Resource function is SMC2P1 output, CMP1 and/or AN22 input if selected
1 - Resource function is AN22 input
PFR27.5 0 - Port is in general purpose port mode.
1 - Port is in resource function mode:
EPFR27.5 0 - Resource function is SMC1M1 output, CMP1 and/or AN21 input if selected
1 - Resource function is AN21 input
PFR27.4 0 - Port is in general purpose port mode.
1 - Port is in resource function mode:
EPFR27.4 0 - Resource function is SMC1P1 output, CMP1 and/or AN20 input if selected
1 - Resource function is AN20 input
PFR27.3 0 - Port is in general purpose port mode.
1 - Port is in resource function mode:
EPFR27.3 0 - Resource function is SMC2M0 output, CMP0 and/or AN19 input if selected
1 - Resource function is AN19 input
PFR27.2 0 - Port is in general purpose port mode.
1 - Port is in resource function mode:
EPFR27.2 0 - Resource function is SMC2P0 output, CMP0 and/or AN18 input if selected
1 - Resource function is AN18 input
PFR27.1 0 - Port is in general purpose port mode.
1 - Port is in resource function mode:
EPFR27.1 0 - Resource function is SMC1M0 output, CMP0 and/or AN17 input if selected
1 - Resource function is AN17 input
PFR27.0 0 - Port is in general purpose port mode.
1 - Port is in resource function mode:
EPFR27.0 0 - Resource function is SMC1P0 output, CMP0 and/or AN16 input if selected
1 - Resource function is AN16 input
Addr 7 6 5 4 3 2 1 0 initial
PFR27 0D9Bh PFR27.7 PFR27.6 PFR27.5 PFR27.4 PFR27.3 PFR27.2 PFR27.1 PFR27.0 0000 0000
EPFR27 0DDBh EPFR27.7 EPFR27.6 EPFR27.5 EPFR27.4 EPFR27.3 EPFR27.2 EPFR27.1 EPFR27.0 0000 0000
R/W R/W R/W R/W R/W R/W R/W R/W