h8s-2158 Renesas Electronics Corporation., h8s-2158 Datasheet - Page 283

• Manufacturer Part Number: h8s-2158
• Description: Renesas 16-bit Single-chip Microcomputer H8s Family/h8s/2100 Series
• Manufacturer: Renesas Electronics Corporation.

RE
P53DDR
Pin function
TE
P52DDR
Pin function
RE
P51DDR
Pin function
P53/IRQ11/RxD1/IrRxD
The pin function is switched as shown below according to the combination of the RE bit in
SCR of SCI_1 and the P53DDR bit.
When the IRQ11E bit in IER16 of the interrupt controller is set to 1 or the ISS11 bit in ISSR16
is cleared to 0, this pin can be used as the IRQ11 input pin. To use this pin as the IRQ11 input
pin, clear the P53DDR bit to 0.
P52/IRQ10/TxD1/IrTxD
The pin function is switched as shown below according to the combination of the TE bit in
SCR of SCI_1 and the P52DDR bit.
When the IRQ10E bit in IER16 of the interrupt controller is set to 1 or the ISS10 bit in ISSR16
is cleared to 0, this pin can be used as the IRQ10 input pin. To use this pin as the IRQ10 input
pin, clear the P52DDR bit to 0.
P51/IRQ9/RxD0
The pin function is switched as shown below according to the combination of the RE bit in
SCR of SCI_0 and the P51DDR bit.
When the IRQ9E bit in IER16 of the interrupt controller is set to 1 or the ISS9 bit in ISSR16 is
cleared to 0, this pin can be used as the IRQ9 input pin. To use this pin as the IRQ9 input pin,
clear the P51DDR bit to 0.
P53 input pin
P52 input pin
P51 input pin
0
0
0
0
0
0
IRQ11 input pin
IRQ10 input pin
P53 output pin
P52 output pin
P51 output pin
IRQ9 input pin
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Rev. 3.00 Jan 25, 2006 page 231 of 872
TxD1/IrTxD output pin
RxD1/IrRxD input pin
RxD0 input pin
Section 9 I/O Ports
REJ09B0286-0300
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