HD64F2168 Datasheet, PDF (238/874 Pages) Renesas Technology Corp – Renesas 16-Bit Single-Chip Microcomputer

• P45/IRQ5/TMIY
The pin function is switched as shown below according to the P45DDR bit.
When the TMIYS bit in PTCNT0 is cleared to 0 and the external clock is selected by the CKS2
to CKS0 bits in TCR of TMR_Y, this bit is used as the TMCIY input pin. When the CCLR1
and CCLR0 bits in TCR of TMR_Y are set to 1, this pin is used as the TMRIY input pin.
When the ISS5 bit in ISSR is cleared to 0 and the IRQ5E bit in IER of the interrupt controller
is set to 1, this pin can be used as the IRQ5 input pin. To use this pin as the IRQ5 input pin,
clear the P45DDR bit to 0.
P45DDR
Pin function
0
P45 input pin
TMIY (TMCIY/TMRIY) input pin
IRQ5 input pin
1
P45 output pin
• P44/IRQ4/TMIX
The pin function is switched as shown below according to the P44DDR bits.
When the TMIXS bit in PTCNT0 is cleared to 0 and the external clock is selected by the CKS2
to CKS0 bits in TCR of TMR_X, this bit is used as the TMCIX input pin. When the CCLR1
and CCLR0 bits in TCR of TMR_X are set to 1, this pin is used as the TMRIX input pin.
When the ISS4 bit in ISSR is cleared to 0 and the IRQ4E bit in IER of the interrupt controller
is set to 1, this pin can be used as the IRQ4 input pin. To use this pin as the IRQ4 input pin,
clear the P44DDR bit to 0.
P44DDR
Pin function
0
P44 input pin
TMIY (TMCIY/TMRIY) input pin
IRQ4 input pin
1
P44 output pin
• P43/IRQ3/TMO1
The pin function is switched as shown below according to the OS3 to OS0 bits in TCSR of
TMR_1 and the P43DDR bit. When the ISS3 bit in ISSR is cleared to 0 and the IRQ3E bit in
IER of the interrupt controller is set to 1, this pin can be used as the IRQ3 input pin. To use
this pin as the IRQ3 input pin, clear the P43DDR bit to 0.
OS3 to OS0
P43DDR
Pin function
All 0
0
1
P43 input pin
IRQ3 input pin
P43 output pin
One bit is set as 1

TMO1 output pin
Rev. 3.00, 03/04, page 198 of 830