Datasheet

Section 8 I/O Ports
Rev. 2.00 Aug. 20, 2008 Page 268 of 1198
REJ09B0403-0200
8.1.15 Port F
Port F is a 7-bit I/O port. Port F pins can also function as the PWMX output and EtherC control
input/output pins. Port F has the following registers.
• Port F data direction register (PFDDR)
• Port F output data register (PFODR)
• Port F input data register (PFPIN)
(1) Port F Data Direction Register (PFDDR)
The individual bits of PFDDR specify input or output for the port F pins. PFDDR is initialized
only by a system reset, and retains the value even if an internal reset signal of the WDT is
generated.
Bit Bit Name Initial Value R/W Description
7    Reserved
6
5
4
3
2
1
0
PF6DDR
PF5DDR
PF4DDR
PF3DDR
PF2DDR
PF1DDR
PF0DDR
0
0
0
0
0
0
0
W
W
W
W
W
W
W
When set to 1, the corresponding pin functions as an
output port pin; when cleared to 0, functions as an
input port pin.
Since this register is allocated to the same address as
PFPIN, states of the port F pins are returned when
this register is read.