HD6432670 Hitachi, HD6432670 Datasheet - Page 524

• Manufacturer Part Number: HD6432670
• Description: (HD64F267x Series) 16-Bit Microcomputer
• Manufacturer: Hitachi

Bit
7
6
5
4
3
2
1
0
Note: Only in H8S/2678R Series.
10.11.5 Pin Functions
Port C pins also function as address outputs. The correspondence between the register
specification and the pin functions is shown below.
The pin function is switched as shown below according to the operating mode, bit EXPE, and bit
PCDDR.
Note: Only in H8S/2678R Series.
10.11.6 Port C Input Pull-Up MOS States
Port C has a built-in input pull-up MOS function that can be controlled by software. This input
pull-up MOS function can be used in modes 3*, 4, and 7. Input pull-up MOS can be specified as
on or off on a bit-by-bit basis.
In modes 3*, 4, and 7, when a PCDDR bit is cleared to 0, setting the corresponding PCPCR bit to
1 turns on the input pull-up MOS for that pin.
Table 10.4 summarizes the input pull-up MOS states.
Rev. 2.0, 04/02, page 478 of 906
Operating
mode
EXPE
PCDDR
Pin function
PC7/A7, PC6/A6, PC5/A5, PC4/A4, PC3/A3, PC2/A2, PC1/A1, PC0/A0
Bit Name
PC7PCR
PC6PCR
PC5PCR
PC4PCR
PC3PCR
PC2PCR
PC1PCR
PC0PCR
Address
1, 2, 5,
output
—
—
6
Initial Value
0
0
0
0
0
0
0
0
input
PC
0
—
4
Address
output
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
1
Description
When a pin function is specified to an input port,
setting the corresponding bit to 1 turns on the input
pull-up MOS for that pin.
input
PC
0
0
output
PC
1
3*, 7
input
PC
0
1
Address
output
1