Datasheet

Section 10 I/O Ports
R01UH0309EJ0500 Rev. 5.00 Page 517 of 1408
Sep 24, 2012
H8S/2456, H8S/2456R, H8S/2454 Group
Table 10.2 Port Functions of H8S/2454 Group
Mode 3, 7
Port Description Mode 1 Mode 2 Mode 4
EXPE = 1 EXPE = 0
Schmitt-
triggered
input Pin*
Input
Pull-up
MOS
Capability
Open
Drain
Output
Capability
5-V
Tolerance
P17/PO15/TIOCB2/TCLKD/SCS0-A
P17,
TIOCB2,
TCLKD
P16/PO14/TIOCA2/SSCK0-A
P16,
TIOCA2
P15/DACK1/PO13/TIOCB1/TCLKC/SSI0-A
P15,
TIOCB1
P14/DACK1/PO12/TIOCA1/SSO0-A
P14,
TIOCA1
P13/TEND1/PO11/TIOCD0/TCLKB
All input pin
functions
P12/TEND0/PO10/TIOCC0/TCLKA
All input pin
functions
P11/DREQ1/PO9/TIOCB0
All input pin
functions
Port 1
General I/O port also
functioning as PPG
outputs,
TPU I/Os, DMAC
I/Os, and SSU I/Os
P10/DREQ0/PO8/TIOCA0
All input pin
functions
⎯
All output
pin
functions
⎯
P27/PO7/TIOCB5/SCL2
All input pin
functions
P26/PO6/TIOCA5/SDA2/ADTRG1
P26,
TIOCA5,
SDA2
P25/WAIT-B/PO5-A/TIOCB4-A/TMO1-A/VBUS
P25/
PO5-A/
TIOCB4-A/
TMO1-A/
VBUS
P25,
TIOCB4-A
Port 2
General I/O port also
functioning as PPG
outputs,
TPU I/Os, SCI I/Os,
TMR I/Os,
I
2
C I/Os,
A/D converter inputs,
bus control signal
I/Os, and USB I/Os.
P20/PO0-A/TIOCA3-A/TMRI0
All input pin
functions
⎯
All output
pin
functions
Ο
P35/OE-B/SCK1/SCL0
P35/SCK1/
SCL0
SCL0
All output
pin
functions
other than
OE-B
P34/SCK0/SCK4-A/SDA0 SDA0
P33/RxD1/SCL1 SCL1
P32/RxD0/IrRxD/SDA1 SDA1
Ο
P31/TxD1
Port 3
General I/O port also
functioning as SCI
I/Os, I
2
C I/Os, and
bus control signal
I/Os
P30/TxD0/IrTxD
⎯
⎯
All output
pin
functions
⎯