p2125vps20 Renesas Electronics Corporation., p2125vps20 Datasheet - Page 209

• Manufacturer Part Number: p2125vps20
• Description: 16-bit Single-chip Microcomputer H8s Family / H8s/2100 Series
• Manufacturer: Renesas Electronics Corporation.

• P42/IRQ0
Note:
• P41/IRQ1
Note:
• P40/IRQ2/ADTRG
Note:
P42DDR
Pin Function
P41DDR
Pin Function
P40DDR
Pin Function
The pin function is switched as shown below according to the combination of the P40DDR bit.
*
*
*
When bit IRQ0E in IER is set to 1, this pin is used as the IRQ0 input pin.
When the bit IRQ1E in IER is set to 1, this pin is used as the IRQ1 input pin.
When the IRQ2E bit in IER is set to 1, this pin is used as the IRQ2 input pin. When both
of the TRGS1 and TRGS0 bits in ADCR of the A/D converter are set to 1, this pin is
used as the ADTRG input pin.
P42 input pin
P41 input pin
P40 input pin
0
0
0
IRQ2 input pin, ADTRG input pin*
IRQ0 input pin*
IRQ1 input pin*
Rev. 1.00 Sep. 21, 2006 Page 171 of 658
P42 output pin
P41 output pin
P40 output pin
1
1
1
Section 8 I/O Ports
REJ09B0310-0100