Renesas H8S/2111B 用户手册
Rev. 1.00, 05/04, page 103 of 544
7.2.2
Port 2 Data Register (P2DR))
P2DR stores output data for port 2.
Bit Bit
Name
Initial
Value R/W Description
Value R/W Description
7 P27DR
0 R/W
6 P26DR
0 R/W
5 P25DR
0 R/W
4 P24DR
0 R/W
3 P23DR
0 R/W
2 P22DR
0 R/W
1 P21DR
0 R/W
0 P20DR
0 R/W
If a port 2 read is performed while P2DDR bits are set
to 1, the P2DR values are read directly, regardless of
the actual pin states. If a port 2 read is performed while
P2DDR bits are cleared to 0, the pin states are read.
to 1, the P2DR values are read directly, regardless of
the actual pin states. If a port 2 read is performed while
P2DDR bits are cleared to 0, the pin states are read.
7.2.3
Port 2 Pull-Up MOS Control Register (P2PCR)
P2PCR controls the port 2 on-chip input pull-up MOSs.
Bit Bit
Name
Initial
Value R/W Description
Value R/W Description
7 P27PCR
0 R/W
6 P26PCR
0 R/W
5 P25PCR
0 R/W
4 P24PCR
0 R/W
3 P23PCR
0 R/W
2 P22PCR
0 R/W
1 P21PCR
0 R/W
0 P20PCR
0 R/W
The input pull-up MOS is turned on when a P2PCR bit
is set to 1 in the input port state.
is set to 1 in the input port state.
7.2.4 Pin
Functions
• P27, P26, P25, P24, P23, P22, P21, P20
The pin function is switched as shown below according to the state of the P2nDDR bit.
P2nDDR 0
1
Pin Function
P27 to P20 input pins
P27 to P20 output pins
[Legend]
n = 7 to 0
n = 7 to 0