4 port function register setup, Port function register setup on – FUJITSU MB91460 SERIES FR60 User Manual
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Chapter 30 I/O Ports
3.Port Register Settings
3.4 Port Function Register Setup
This section describes the Port Function Registers of each port.
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P00: The functions of Port 00 are controlled by PFR00
If the external bus interface is enabled (by mode pins MD[2:0] or mode vector), P00[7:0] is input/output for data
lines D[31:24]. Otherwise, the port can be used as general purpose port.
PFR00.7
0 - Port is in general purpose port mode.
1 - Port is in external bus mode (if external bus is enabled otherwise general purpose port).
PFR00.6
0 - Port is in general purpose port mode.
1 - Port is in external bus mode (if external bus is enabled otherwise general purpose port).
PFR00.5
0 - Port is in general purpose port mode.
1 - Port is in external bus mode (if external bus is enabled otherwise general purpose port).
PFR00.4
0 - Port is in general purpose port mode.
1 - Port is in external bus mode (if external bus is enabled otherwise general purpose port).
PFR00.3
0 - Port is in general purpose port mode.
1 - Port is in external bus mode (if external bus is enabled otherwise general purpose port).
PFR00.2
0 - Port is in general purpose port mode.
1 - Port is in external bus mode (if external bus is enabled otherwise general purpose port).
PFR00.1
0 - Port is in general purpose port mode.
1 - Port is in external bus mode (if external bus is enabled otherwise general purpose port).
PFR00.0
0 - Port is in general purpose port mode.
1 - Port is in external bus mode (if external bus is enabled otherwise general purpose port).
Addr
7
6
5
4
3
2
1
0
initial
PFR00
0D80h
PFR00.7
PFR00.6
PFR00.5
PFR00.4
PFR00.3
PFR00.2
PFR00.1
PFR00.0
1111 1111
EPFR00
0DC0h
-
-
-
-
-
-
-
-
---- ----
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W