FUJITSU MB91460 SERIES FR60 User Manual
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Chapter 30 I/O Ports
3.Port Register Settings
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P04: The functions of Port 04 are controlled by PFR04
If the external bus interface is enabled (by mode pins MD[2:0] or mode vector), P04[7:0] is input/output for
address lines A[31:24]. Otherwise, the port can be used as general purpose port.
PFR04.7
0 - Port is in general purpose port mode.
1 - Port is in external bus mode (if external bus is enabled otherwise general purpose port).
PFR04.6
0 - Port is in general purpose port mode.
1 - Port is in external bus mode (if external bus is enabled otherwise general purpose port).
PFR04.5
0 - Port is in general purpose port mode.
1 - Port is in external bus mode (if external bus is enabled otherwise general purpose port).
PFR04.4
0 - Port is in general purpose port mode.
1 - Port is in external bus mode (if external bus is enabled otherwise general purpose port).
PFR04.3
0 - Port is in general purpose port mode.
1 - Port is in external bus mode (if external bus is enabled otherwise general purpose port).
PFR04.2
0 - Port is in general purpose port mode.
1 - Port is in external bus mode (if external bus is enabled otherwise general purpose port).
PFR04.1
0 - Port is in general purpose port mode.
1 - Port is in external bus mode (if external bus is enabled otherwise general purpose port).
PFR04.0
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
PFR04
0D84h
PFR04.7
PFR04.6
PFR04.5
PFR04.4
PFR04.3
PFR04.2
PFR04.1
PFR04.0
1111 1111
EPFR04
0DC4h
-
-
-
-
-
-
-
-
---- ----
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W