Datasheet

Section 10 I/O Ports
R01UH0309EJ0500 Rev. 5.00 Page 585 of 1408
Sep 24, 2012
H8S/2456, H8S/2456R, H8S/2454 Group
• P64/IRQ12-A/DACK0/TMO0-A
The pin function is switched as shown below according to the combination of bit SAE0 in
DMABCRH of DMAC, bits OS3 to OS0 in TCSR_0 of the 8-bit timer, bit TMRS in PFCR3,
bit P64DDR, and bit ITS12 in ITSR of the interrupt controller.
SAE0 0 1
OS3 to OS0 All 0 Not all 0 ⎯
P64DDR 0 1 ⎯ ⎯
P64 input P64 output TMO0-A output*
2
DACK0 output Pin function
IRQ12-A interrupt input*
1
Notes: 1. IRQ12-A input when the ITS12 bit in ITSR is 0.
2. When using as TMO0-A output, set TMRS in PFCR3 to 0 before other register setting.
• P63/IRQ11-A/TEND1/TMCI1-A
The pin function is switched as shown below according to the combination of bit TEE1 in
DMATCR of DMAC, bit TMRS in PFCR3, bit P63DDR, and bit ITS11 in ITSR of the
interrupt controller.
TEE1 0 1
P63DDR 0 1 ⎯
P63 input P63 output TEND1 output
IRQ11-A interrupt input*
1
Pin function
TMCI1-A input*
2
*
3
Notes: 1. IRQ11-A input when the ITS11 bit in ITSR is 0.
2. When used as the external clock input pin for the TMR, the external clock should be
selected using the CKS2 to CKS0 bits in TCR_1 after the TMRS bit in PFCR3 is set to
0.
3. When using as TMCI1-A input, set TMRS in PFCR3 to 0 before other register setting.