Port F Data Register (Pfdr); Port F Register (Portf) - Renesas H8S Series Hardware Manual

Section 9 I/O Ports
9.8.2

Port F Data Register (PFDR)

PFDR is an 8-bit readable/writable register that stores output data for the port F pins.
Bit Bit Name
7 —
6 PF6DR
5 PF5DR
4 PF4DR
3 PF3DR
2 PF2DR
1 PF1DR
0 PF0DR
9.8.3

Port F Register (PORTF)

PORTF is an 8-bit read-only register that shows port F pin states.
PORTF cannot be modified.
Bit Bit Name
7 PF7
6 PF6
5 PF5
4 PF4
3 PF3
2 PF2
1 PF1
0 PF0
Note: * Determined by the states of pins PF7 to PF0.
Rev. 6.00 Mar 15, 2006 page 156 of 570
REJ09B0211-0600
Initial Value R/W
0 R/W
0 R/W
0 R/W
0 R/W
0 R/W
0 R/W
0 R/W
0 R/W
Initial Value R/W
Undefined *
R
Undefined *
R
Undefined *
R
Undefined *
R
Undefined *
R
Undefined *
R
Undefined *
R
Undefined *
R
Description
Reserved
Only 0 should be written to this bit.
Output data for a pin is stored when the pin is
specified as a general purpose I/O port.
Description
If a port F read is performed while PFDDR bits are
set to 1, the PFDR values are read. If a port F read
is performed while PFDDR bits are cleared to 0, the
pin states are read.