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Chapter 30 I/O Ports
3.Port Register Settings
■ P16: The functions of Port 16 are controlled by PFR16 and EPFR16
P16[7:0] is input/output for Programmable Pulse Generator outputs PPG[15:8], external ADC trigger ATGX,
Pulse Frequency Modulator output PFM, and Sound Generator outputs SGO/SGA. Otherwise, the port can be
used as general purpose port.
PFR16.7 0 - Port is in general purpose port mode.
1 - Port is in resource function mode:
EPFR16.7 0 - Resource function is PPG15 output
1 - Resource function is ATGX input
PFR16.6 0 - Port is in general purpose port mode.
1 - Port is in resource function mode:
EPFR16.6 0 - Resource function is PPG14 output
1 - Resource function is PFM output
PFR16.5 0 - Port is in general purpose port mode.
1 - Port is in resource function mode:
EPFR16.5 0 - Resource function is PPG13 output
1 - Resource function is SGO output
PFR16.4 0 - Port is in general purpose port mode.
1 - Port is in resource function mode:
EPFR16.4 0 - Resource function is PPG12 output
1 - Resource function is SGA output
PFR16.3 0 - Port is in general purpose port mode.
1 - Port is in resource function mode:
Resource function is PPG11 output
PFR16.2 0 - Port is in general purpose port mode.
1 - Port is in resource function mode:
Resource function is PPG10 output
PFR16.1 0 - Port is in general purpose port mode.
1 - Port is in resource function mode:
Resource function is PPG9 output
PFR16.0 0 - Port is in general purpose port mode.
1 - Port is in resource function mode:
Resource function is PPG8 output
Addr 7 6 5 4 3 2 1 0 initial
PFR16 0D90h PFR16.7 PFR16.6 PFR16.5 PFR16.4 PFR16.3 PFR16.2 PFR16.1 PFR16.0 0000 0000
EPFR16 0DD0h EPFR16.7 EPFR16.6 EPFR16.5 EPFR16.4 - - - - 0000 ----
R/W R/W R/W R/W R/W R/W R/W R/W