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Chapter 30 I/O Ports
3.Port Register Settings
■ P28: The functions of Port 28 are controlled by PFR28
P28[7:0] is input/output for A/D converter analogue inputs AN[15:8], and D/A converter analogue outputs
DA[1:0]. Otherwise, the port can be used as general purpose port.
PFR28.7 0 - Port is in general purpose port mode.
1 - Port is in resource function mode:
Resource function is AN15 input and/or DA1 output if D/A converter output is enabled
PFR28.6 0 - Port is in general purpose port mode.
1 - Port is in resource function mode:
Resource function is AN14 input and/or DA0 output if D/A converter output is enabled
PFR28.5 0 - Port is in general purpose port mode.
1 - Port is in resource function mode:
Resource function is AN13 input
PFR28.4 0 - Port is in general purpose port mode.
1 - Port is in resource function mode:
Resource function is AN12 input
PFR28.3 0 - Port is in general purpose port mode.
1 - Port is in resource function mode:
Resource function is AN11 input
PFR28.2 0 - Port is in general purpose port mode.
1 - Port is in resource function mode:
Resource function is AN10 input
PFR28.1 0 - Port is in general purpose port mode.
1 - Port is in resource function mode:
Resource function is AN9 input
PFR28.0 0 - Port is in general purpose port mode.
1 - Port is in resource function mode:
Resource function is AN8 input
Addr 7 6 5 4 3 2 1 0 initial
PFR28 0D9Ch PFR28.7 PFR28.6 PFR28.5 PFR28.4 PFR28.3 PFR28.2 PFR28.1 PFR28.0 0000 0000
EPFR28 0DDCh - - - - - - - - ---- ----
R/W R/W R/W R/W R/W R/W R/W R/W