Fujitsu MB91460 SERIES FR60 User Manual page 496

Chapter 30 I/O Ports
3.Port Register Settings
■ P21: The functions of Port 21 are controlled by PFR21 and EPFR21
Addr
PFR21 0D95h
EPFR21 0DD5h
P21[7:0] is input/output for LIN-UART serial communication signals SCK, SOT, SIN of channels 0 and 1, and
Free Run Timer FRT inputs CK of channels 0 and 1. Otherwise, the port can be used as general purpose port.
PFR21.6 0 - Port is in general purpose port mode.
1 - Port is in resource function mode:
EPFR21.6 0 - Resource function is SCK1 input/output
PFR21.5 0 - Port is in general purpose port mode.
1 - Port is in resource function mode:
Resource function is SOT1 output
PFR21.4 0 - Port is in general purpose port mode.
1 - Port is in resource function mode:
Resource function is SIN1 input
PFR21.2 0 - Port is in general purpose port mode.
1 - Port is in resource function mode:
EPFR21.2 0 - Resource function is SCK0 input/output
PFR21.1 0 - Port is in general purpose port mode.
1 - Port is in resource function mode:
Resource function is SOT0 output
PFR21.0 0 - Port is in general purpose port mode.
1 - Port is in resource function mode:
Resource function is SIN0 input
480
7 6 5
- PFR21.6 PFR21.5
- EPFR21.6 -
R/W R/W R/W
1 - Resource function is CK1 input
1 - Resource function is CK0 input
4 3
PFR21.4 - PFR21.2
- - EPFR21.2
R/W R/W R/W
2 1 0
PFR21.1 PFR21.0
- -
R/W R/W
initial
-000 -000
-0-- -0--