Filter
Top Products
468
Chapter 30 I/O Ports
3.Port Register Settings
■ P10: The functions of Port 10 are controlled by PFR10 and EPFR10
If the external bus interface is enabled (by mode pins MD[2:0] or mode vector), P10[7:0] is input/output for
external bus control signals MCLKE, MCLKI, MCLKO, WEX, BAAX, ASX, SYSCLK. Otherwise, the port can be
used as general purpose port.
PFR10.6 0 - Port is in general purpose port mode.
1 - Port is in external bus mode (if external bus is enabled otherwise general purpose port):
External bus function is MCLKE
PFR10.5 0 - Port is in general purpose port mode.
1 - Port is in external bus mode (if external bus is enabled otherwise general purpose port):
EPFR10.5 0 - External bus function is MCLKI
1 - External bus function is MCLKI (inverted input)
PFR10.4 0 - Port is in general purpose port mode.
1 - Port is in external bus mode (if external bus is enabled otherwise general purpose port):
EPFR10.4 0 - External bus function is MCLKO
1 - External bus function is MCLKO (inverted output)
PFR10.3 0 - Port is in general purpose port mode.
1 - Port is in external bus mode (if external bus is enabled otherwise general purpose port):
External bus function is WEX
PFR10.2 0 - Port is in general purpose port mode.
1 - Port is in external bus mode (if external bus is enabled otherwise general purpose port):
External bus function is BAAX
PFR10.1 0 - Port is in general purpose port mode.
1 - Port is in external bus mode (if external bus is enabled otherwise general purpose port):
External bus function is ASX
PFR10.0 0 - Port is in general purpose port mode.
1 - Port is in external bus mode (if external bus is enabled otherwise general purpose port):
EPFR10.4 0 - External bus function is SYSCLK
1 - External bus function is SYSCLK (inverted output)
Addr 7 6 5 4 3 2 1 0 initial
PFR10 0D8Ah - PFR10.6 PFR10.5 PFR10.4 PFR10.3 PFR10.2 PFR10.1 PFR10.0 -111 1111
EPFR10 0DCAh - - EPFR10.5 EPFR10.4 - - - EPFR10.0 --00 ---0
R/W R/W R/W R/W R/W R/W R/W R/W