HD6432345 Datasheet, PDF (269/907 Pages) Hitachi Semiconductor – H8S/2345 F-ZTAT Hardware Manual

Port C MOS Pull-Up Control Register (PCPCR)
Bit
:
7
6
5
4
3
2
1
0
PC7PCR PC6PCR PC5PCR PC4PCR PC3PCR PC2PCR PC1PCR PC0PCR
Initial value :
0
0
0
0
0
0
0
0
R/W
: R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
PCPCR is an 8-bit readable/writable register that controls the MOS input pull-up function
incorporated into port C on an individual bit basis.
When a PCDDR bit is cleared to 0 (input port setting) in mode 2, 3, 6, or 7*, setting the
corresponding PCPCR bit to 1 turns on the MOS input pull-up for the corresponding pin.
PCPCR is initialized to H'00 by a power-on reset, and in hardware standby mode. It retains its
prior state after a manual reset, and in software standby mode.
Note: * Modes 1 to 3 are not available on the F-ZTAT version.
Modes 2, 3, 6, and 7 are not available on the ROMless version.
8.8.3 Pin Functions
Modes 1, 4, and 5*: In modes 1, 4, and 5*, port C pins are automatically designated as address
outputs.
Port C pin functions in modes 1, 4, and 5 are shown in figure 8.14.
Port C
A₇ (output)
A₆ (output)
A₅ (output)
A₄ (output)
A₃ (output)
A₂ (output)
A₁ (output)
A₀ (output)
Figure 8.14 Port C Pin Functions (Modes 1, 4, and 5)*
Note: * Modes 1 to 3 are not available on the F-ZTAT version.
Modes 2, 3, 6, and 7 are not available on the ROMless version.
252