Datasheet

Section 10 I/O Ports
Page 650 of 1384 R01UH0310EJ0500 Rev. 5.00
Sep 25, 2012
H8S/2426, H8S/2426R, H8S/2424 Group
10.12.6 Pin Functions
Port D pins also function as the pins for data I/Os and address outputs. The correspondence
between the register specification and the pin functions is shown below.
• PD7/D15/AD15, PD6/D14/AD14, PD5/D13/AD13, PD4/D12/AD12, PD3/D11/AD11,
PD2/D10/AD10, PD1/D9/AD9, PD0/D8/AD8
The pin function is switched as shown below according to the combination of the operating
mode, bit EXPE, bit MPXE in MPXCR of the bus controller, and bit PDnDDR.
Operating
mode
1, 2, 4 3, 7
EXPE ⎯ 0 1
MPXE 0 1 ⎯ 0 1
PDnDDR ⎯ 0 1 ⎯
Pin function Data I/O Address
output/
data I/O
PDn input PDn output Data I/O Address
output/
data I/O
[Legend]
n = 7 to 0