Fujitsu MB91460 SERIES FR60 User Manual page 509

■ P31: The functions of Port 31 are controlled by PFR31
Addr
PFR31 0D9Fh PFR31.7
EPFR31 0DDFh
P31[7:0] is input/output for LCD controller segment driver outputs SEG[39:32]. Otherwise, the port can be used
as general purpose port.
PFR31.7 0 - Port is in general purpose port mode.
1 - Port is in resource function mode:
Resource function is SEG39 output
PFR31.6 0 - Port is in general purpose port mode.
1 - Port is in resource function mode:
Resource function is SEG38 output
PFR31.5 0 - Port is in general purpose port mode.
1 - Port is in resource function mode:
Resource function is SEG37 output
PFR31.4 0 - Port is in general purpose port mode.
1 - Port is in resource function mode:
Resource function is SEG36 output
PFR31.3 0 - Port is in general purpose port mode.
1 - Port is in resource function mode:
Resource function is SEG35 output
PFR31.2 0 - Port is in general purpose port mode.
1 - Port is in resource function mode:
Resource function is SEG34 output
PFR31.1 0 - Port is in general purpose port mode.
1 - Port is in resource function mode:
Resource function is SEG33 output
PFR31.0 0 - Port is in general purpose port mode.
1 - Port is in resource function mode:
Resource function is SEG32 output
7 6 5
PFR31.6 PFR31.5
- - -
R/W R/W R/W
4 3
PFR31.4 PFR31.3 PFR31.2
- -
R/W R/W R/W
Chapter 30 I/O Ports
3.Port Register Settings
2 1 0
PFR31.1 PFR31.0
- - -
R/W R/W
initial
0000 0000
---- ----
493