Datasheet

Section 10A I/O Ports
(H8S/2633, H8S/2632, H8S/2631, H8S/2633R)
R01UH0166EJ0600 Rev. 6.00 Page 395 of 1434
Mar 02, 2011
H8S/2633 Group, H8S/2633 F-ZTAT
TM
,
H8S/2633R F-ZTAT
TM
, H8S/2695
Table 10A.5 Port 3 Pin Functions
Pin Selection Method and Pin Functions
P37/TxD4 Switches as follows according to combinations of SCR TE bit of SCI4 and the
P37DDR bit.
TE 0 1
P37DDR 0 1 —
Pin function P37 input pin P37 output pin
*
TxD4 output pin
Note: * When P37ODR = 1, it becomes NMOS open drain output.
P36/RxD4 Switches as follows according to combinations of SCR RE bit of SCI4 and the
P36DDR bit.
RE 0 1
P36DDR 0 1 —
Pin function P36 input pin P36 output pin
*
RxD4 input pin
Note: * When P36ODR = 1, it becomes NMOS open drain output.
P35/SCK1/
SCK4/SCL0/
IRQ5
Switches as follows according to combinations of ICCR0 ICE bit of IIC0, SMR C/A
bit of SCI1 or SCI4, SCR CKE0 and CKE1 bits, and the P35DDR bit.
When used as a SCL0 I/O pin, always be sure to clear the following bits to 0: SMR
C/A bits of SCI1 or SCI4, and SCR CKE0 and CKE1 bits. Do not set SCK1 and
SCK4 to simultaneous output.
The SCL0 output format is NMOS open drain output, enabling direct bus driving.
ICE 0 1
CKE1 (SCI1)
CKE1 (SCI4)
0
0
0, 1, 1
1, 0, 1
0
0
C/A (SCI1)
C/A (SCI4)
0
0
1
1
—
0
0
CKE0 (SCI1)
CKE0 (SCI4)
0
0
0, 1, 1
*
2
1, 0, 1
*
2
— —
0
0
P35DDR 0 1 — — — —
Pin function P35
input pin
P35
output pin
*
1
SCK1/SCK4
output pin
*
1
SCK1/SCK4
output pin
*
1
SCK1/SCK4
input pin
SCL0
I/O pin
IRQ5 input
Notes: 1. Output type is NMOS push-pull. When P35ODR = 1, it becomes NMOS
open drain output.
2. SCK1 and SCK4 must not be output simultaneously.