HD64336901G Renesas Technology, HD64336901G Datasheet - Page 75

• Manufacturer Part Number: HD64336901G
• Description: (HD64xxx Series) 16-BIT MICROCONTROLLER
• Manufacturer: Renesas Technology

3.2
Interrupts are controlled by the following registers.
3.2.1
IEGR1 selects the direction of an edge that generates interrupt requests of the IRQ3 and IRQ0
pins.
Bit
7
6 to 4
3
2, 1
0
Interrupt edge select register 1 (IEGR1)
Interrupt edge select register 2 (IEGR2)
Interrupt enable register 1 (IENR1)
Interrupt enable register 2 (IENR2)
Interrupt flag register 1 (IRR1)
Interrupt flag register 2 (IRR2)
Wakeup interrupt flag register (IWPR)
Interrupt Edge Select Register 1 (IEGR1)
Bit Name
IEG3
IEG0
Register Descriptions
Initial
Value
0
All 1
0
All 0
0
R/W
R/W
R/W
Description
Reserved
This bit is always read as 0.
Reserved
These bits are always read as 1.
IRQ3 Edge Select
0: Falling edge of IRQ3 pin input is detected
1: Rising edge of IRQ3 pin input is detected
Reserved
These bits are always read as 0.
IRQ0 Edge Select
0: Falling edge of IRQ0 pin input is detected
1: Rising edge of IRQ0 pin input is detected
Rev. 1.00, 11/03, page 47 of 376