HD6432670 Hitachi, HD6432670 Datasheet - Page 518

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

10.9.7
Port A 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, bits
A23E to A21E, and bit PADDR.
Note: Only in H8S/2678R Series.
The pin function is switched as shown below according to the operating mode, bit EXPE, bits
A23E to A21E, and bit PADDR.
Note: Only in H8S/2678R Series.
10.9.8
Port A has a built-in input pull-up MOS function that can be controlled by software. This input
pull-up MOS function can be used by pins PA7 to PA5 in modes 1, 2, 5, and 6, and by all pins in
modes 3*, 4, and 7. Input pull-up MOS can be specified as on or off on a bit-by-bit basis.
Table 10.2 summarizes the input pull-up MOS states.
Rev. 2.0, 04/02, page 472 of 906
Operating
mode
EXPE
AxxE
PADDR
Pin
function
Operating
mode
EXPE
AxxE
PADDR
Pin
function
PA7/A23, PA6/A22, PA5/A21
PA4/A20, PA3/A19, PA2/A18, PA1/A17, PA20/A16
Address
Pin Functions
Port A Input Pull-Up MOS States
1, 2, 5,
output
input
PA
—
—
—
0
6
0
output
input
PA
PA
0
1, 2, 4, 5, 6
1
0
—
output
PA
input
1
PA
0
—
4
1
input
PA
Address
0
output
1
1
Address
output
1
input
PA
0
input
—
PA
0
0
output
PA
—
1
0
output
PA
1
input
PA
0
input
PA
3*, 7
0
0
3*, 7
output
0
PA
output
1
PA
1
1
1
input
PA
input
0
PA
0
1
1
Address
Address
output
output
1
1