Renesas H8S/2368 Series Hardware Manual page 398

•
PA6/A22/IRQ6, PA5/A21/IRQ5
The pin function is switched as shown below according to the operating mode, bit EXPE, bits
A22E and A21E, bits IS6 and ITS5 in ITSR, and bit PAnDDR.
Operating
mode
EXPE
AxxE 0
PADDR 0
Pin function PA
input
n = 6 or 5 xx = 22 or 21
Note: * IRQn input when ITSn = 0.
•
PA4/A20/IRQ4
The pin function is switched as shown below according to the operating mode, bit EXPE, bit
A20E and bit PA4DDR.
Operating 1, 2
mode
EXPE —
A20E —
PA4DDR —
Pin function A20
output
Note: * IRQ4 input when ITS4 = 0.
Rev. 2.00, 05/03, page 346 of 820
1, 2, 4
—
1
1 0 1
PA PA Address
output input output
4
—
0
0 1 0
PA4 PA4 PA4
input output input
0
—
0 1
PA PA
input output
IRQn interrupt input*
0
1 —
1 0 1
A20 PA4 PA4
output input output
IRQ4 interrupt input*
7
1
0
0 1 0
PA PA PA
input output input
7
1
0
0 1 0
PA4 PA4 PA4
input output input
1
1
Address
output
1
1
A20
output