Renesas H8S/2111B 用户手册
Rev. 1.00, 05/04, page 105 of 544
7.3.2
Port 3 Data Register (P3DR)
P3DR stores output data of port 3.
Bit Bit
Name
Initial
Value R/W Description
Value R/W Description
7 P37DR
0 R/W
6 P36DR
0 R/W
5 P35DR
0 R/W
4 P34DR
0 R/W
3 P33DR
0 R/W
2 P32DR
0 R/W
1 P31DR
0 R/W
0 P30DR
0 R/W
If a port 3 read is performed while P3DDR bits are set
to 1, the P3DR values are read directly, regardless of
the actual pin states. If a port 3 read is performed while
P3DDR bits are cleared to 0, the pin states are read.
to 1, the P3DR values are read directly, regardless of
the actual pin states. If a port 3 read is performed while
P3DDR bits are cleared to 0, the pin states are read.
7.3.3
Port 3 Pull-Up MOS Control Register (P3PCR)
P3PCR controls the port 3 on-chip input pull-up MOSs on a bit-by-bit basis.
Bit Bit
Name
Initial
Value R/W Description
Value R/W Description
7 P37PCR
0 R/W
6 P36PCR
0 R/W
5 P35PCR
0 R/W
4 P34PCR
0 R/W
3 P33PCR
0 R/W
2 P32PCR
0 R/W
1 P31PCR
0 R/W
0 P30PCR
0 R/W
The input pull-up MOS is turned on when a P3PCR bit
is set to 1 in the input port state.
is set to 1 in the input port state.
The input pull-up MOS function cannot be used when
the host interface is enabled.
the host interface is enabled.