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Chapter 30 I/O Ports
3.Port Register Settings
■ P33: The functions of Port 33 are controlled by PFR33 and EPFR33
P33[7:0] is input/output for LCD controller segment driver outputs SEG[23:16], and LIN-UART serial
communication signals SCK, SOT, SIN of channels 12 and 13. Otherwise, the port can be used as general
purpose port.
PFR33.7 0 - Port is in general purpose port mode.
1 - Port is in resource function mode:
Resource function is SEG23 output
PFR33.6 0 - Port is in general purpose port mode.
1 - Port is in resource function mode:
EPFR33.6 0 - Resource function is SEG22 output
1 - Resource function is SCK13 input/output
PFR33.5 0 - Port is in general purpose port mode.
1 - Port is in resource function mode:
EPFR33.5 0 - Resource function is SEG21 output
1 - Resource function is SOT13 output
PFR33.4 0 - Port is in general purpose port mode.
1 - Port is in resource function mode:
EPFR33.4 0 - Resource function is SEG20 output
1 - Resource function is SIN13 input
PFR33.3 0 - Port is in general purpose port mode.
1 - Port is in resource function mode:
Resource function is SEG19 output
PFR33.2 0 - Port is in general purpose port mode.
1 - Port is in resource function mode:
EPFR33.2 0 - Resource function is SEG18 output
1 - Resource function is SCK12 input/output
PFR33.1 0 - Port is in general purpose port mode.
1 - Port is in resource function mode:
EPFR33.1 0 - Resource function is SEG17 output
1 - Resource function is SOT12 output
PFR33.0 0 - Port is in general purpose port mode.
1 - Port is in resource function mode:
EPFR33.0 0 - Resource function is SEG16 output
1 - Resource function is SIN12 input
Addr 7 6 5 4 3 2 1 0 initial
PFR33 0DA1h PFR33.7 PFR33.6 PFR33.5 PFR33.4 PFR33.3 PFR33.2 PFR33.1 PFR33.0 0000 0000
EPFR33 0DE1h - EPFR33.6 EPFR33.5 EPFR33.4 - EPFR33.2 EPFR33.1 EPFR33.0 -000 -000
R/W R/W R/W R/W R/W R/W R/W R/W