HD6433682 ETC, HD6433682 Datasheet - Page 80

• Manufacturer Part Number: HD6433682
• Description: Renesas 16-Bit Single-Chip Microcomputer H8 Family/H8/300H Tiny Series
• Manufacturer: ETC

3.2.1
IEGR1 selects the direction of an edge that generates interrupt requests of pins NMI and IRQ3 to
IRQ0.
Rev. 3.00, 05/03, page 50 of 472
Bit
7
6 to 4
3
2
1
0
Bit Name
NMIEG
IEG3
IEG2
IEG1
IEG0
Interrupt Edge Select Register 1 (IEGR1)
Initial
Value
0
All 1
0
0
0
0
R/W
R/W
R/W
R/W
R/W
R/W
Description
NMI Edge Select
0: Falling edge of NMI pin input is detected
1: Rising edge of NMI pin input is detected
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
IRQ2 Edge Select
0: Falling edge of IRQ2 pin input is detected
1: Rising edge of IRQ2 pin input is detected
IRQ1 Edge Select
0: Falling edge of IRQ1 pin input is detected
1: Rising edge of IRQ1 pin input is detected
IRQ0 Edge Select
0: Falling edge of IRQ0 pin input is detected
1: Rising edge of IRQ0 pin input is detected