HD6412340 HITACHI [Hitachi Semiconductor], HD6412340 Datasheet - Page 268

• Manufacturer Part Number: HD6412340
• Description: H8S/2345 F-ZTAT Hardware Manual
• Manufacturer: HITACHI [Hitachi Semiconductor]

Port C Data Register (PCDR)
PCDR is an 8-bit readable/writable register that stores output data for the port C pins (PC
PCDR 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.
Port C Register (PORTC)
PORTC is an 8-bit read-only register that shows the pin states. It cannot be written to. Writing of
output data for the port C pins (PC
If a port C read is performed while PCDDR bits are set to 1, the PCDR values are read. If a port C
read is performed while PCDDR bits are cleared to 0, the pin states are read.
After a power-on reset and in hardware standby mode, PORTC contents are determined by the pin
states, as PCDDR and PCDR are initialized. PORTC retains its prior state after a manual reset, and
in software standby mode.
Bit
Initial value
R/W
Note: * Determined by state of pins PC
Bit
Initial value
R/W
:
:
:
:
:
:
PC7DR
R/W
PC7
—*
R
7
0
7
PC6DR
R/W
PC6
—*
R
6
0
6
7
to PC
PC5DR
R/W
PC5
7
—*
R
5
0
5
0
to PC
) must always be performed on PCDR.
0
PC4DR
.
R/W
PC4
—*
R
4
0
4
PC3DR
R/W
PC3
—*
R
3
0
3
PC2DR
R/W
PC2
—*
R
2
0
2
PC1DR
R/W
PC1
—*
R
1
0
1
PC0DR
7
R/W
PC0
—*
to PC
R
0
0
0
251
0
).