HD6417660 RENESAS [Renesas Technology Corp], HD6417660 Datasheet - Page 242

• Manufacturer Part Number: HD6417660
• Description: Renesas 32-Bit RISC Microcomputer
• Manufacturer: RENESAS [Renesas Technology Corp]

8.3.2
ICR0 is a register that sets the input signal detection mode of external interrupt input pin NMI, and
indicates the input signal level at the NMI pin.
Note:
Rev. 1.00, 02/04, page 204 of 804
Bit
15
14 to 9
8
7 to 0
*
Interrupt Control Register 0 (ICR0)
Bit Name
NMIL

NMIE

1 when NMI input is high, 0 when NMI input is low.
Initial
Value
0/1*
All 0
0
All 0
R/W
R
R
R/W
R
Description
NMI Input Level
Sets the level of the signal input at the NMI pin. This bit
can be read from to determine the NMI pin level. This
bit cannot be modified.
0: NMI input level is low
1: NMI input level is high
Reserved
These bits are always read as 0. The write value should
always be 0. If 1 is written to these bits, correct
operation cannot be guaranteed.
NMI Edge Select
Selects whether the falling or rising edge of the interrupt
request signal at the NMI pin is detected.
0: Interrupt request is detected at the falling edge of
1: Interrupt request is detected at the rising edge of NMI
Reserved
These bits are always read as 0. The write value should
always be 0. If 1 is written to these bits, correct
operation cannot be guaranteed.
NMI input
input