Datasheet

Section 10A I/O Ports
(H8S/2633, H8S/2632, H8S/2631, H8S/2633R)
Page 396 of 1434 R01UH0166EJ0600 Rev. 6.00
Mar 02, 2011
H8S/2633 Group, H8S/2633 F-ZTAT
TM
,
H8S/2633R F-ZTAT
TM
, H8S/2695
Pin Selection Method and Pin Functions
P34/RxD1/
SDA0
Switches as follows according to combinations of ICCR0 ICE bit of IIC0, SCR RE bit
of SCI1, and the P34DDR bit.
The SDA0 output format becomes NMOS open drain output, enabling direct bus
driving.
ICE 0 1
RE 0 1 —
P34DDR 0 1 — —
Pin function P34 input pin P34 output pin
*
RxD1 input pin SDA0 I/O pin
Note: * Output type is NMOS push-pull. When P34ODR = 1, it becomes NMOS
open drain tray.
P33/TxD1/
SCL1
Switches as follows according to combinations of ICCR1 ICE bit of IIC1, SCR TE bit
of SCI1 and the P33DDR bit.
The SCL1 output format becomes NMOS open drain output, enabling direct bus
driving.
ICE 0 1
TE 0 1 —
P33DDR 0 1 — —
Pin function P33 input pin P33 output pin
*
TxD1 output pin
*
SCL1 I/O pin
*
Note: * When P33ODR = 1, it becomes NMOS open drain output.
P32/SCK0/
SDA1/IRQ4
Switches as follows according to combinations of ICCR1 ICE bit of IIC1, SMR C/A
bit of SCI0, SCR CKE0 and CKE1 bits, and the P32DDR bit.
If using as an SDA1 input pin, always set SMR C/A bit of SCI0 and SCR CKE0 and
CKE1 bits to 0 without fail.
The SDA1 output format becomes NMOS open drain output, enabling direct bus
driving.
ICE 0 1
CKE1 0 1 0
C/A 0 1 — 0
CKE0 0 1 — — 0
P32DDR 0 1 — — — —
Pin function P32
input pin
P32
output pin
SCK0
output pin
*
SCK0
output pin
*
SCK0
input pin
SDA1
I/O pin
IRQ4 input
Note: * When P32ODR = 1, it becomes NMOS open drain output.