HD6412373R RENESAS [Renesas Technology Corp], HD6412373R Datasheet - Page 579

• Manufacturer Part Number: HD6412373R
• Description: Renesas 16-Bit Single-Chip Microcomputer H8S Family/H8S/2300 Series
• Manufacturer: RENESAS [Renesas Technology Corp]

10.9.7
Port A pins also function as the pins for address outputs and interrupt inputs. The correspondence
between the register specification and the pin functions is shown below.
• PA7/A23/IRQ7, PA6/A22/IRQ6, PA5/A21/IRQ5
xx = 23 to 21, n = 7 to 5
Note:
• PA4/A20/IRQ4
Note:
Operating
mode
EXPE
AxxE
PAnDDR
Pin
function
Operating
mode
EXPE
A20E
PA4DDR
Pin
function
The pin function is switched as shown below according to the operating mode, bit EXPE, bits
A23E to A21E, bits ITS7 to ITS5 in ITSR, and bit PADDR.
The pin function is switched as shown below according to the operating mode, bit EXPE, bit
A20E and bit PA4DDR.
* IRQn input when ITSn = 0.
* IRQ4 input when ITS4 = 0.
Pin Functions
Address
output
input
PAn
1, 2
⎯
⎯
⎯
0
0
input
output
PA4
PAn
0
1
1, 2, 4
0
⎯
output
PA4
input
1
PAn
0
⎯
4
1
input
PA4
Address
0
output
1
1
Address
output
IRQn interrupt input *
IRQ4 interrupt input *
1
input
PAn
0
input
PA4
⎯
0
0
Rev.7.00 Mar. 18, 2009 page 511 of 1136
output
PAn
⎯
0
1
output
PA4
1
input
PAn
0
input
PA4
0
7
0
7
0
output
PAn
output
1
PA4
Section 10 I/O Ports
1
REJ09B0109-0700
1
1
input
PAn
input
0
PA4
0
1
1
Address
Address
output
output
1
1