SH7136 datasheet(123/1160 Pages) RENESAS

123 / 1160 page

Section 6 Interrupt Controller (INTC)

Rev. 2.00 Sep. 10, 2008 Page 97 of 1130

REJ09B0402-0200

6.3.1

Interrupt Control Register 0 (ICR0)

ICR0 is a 16-bit register that sets the input signal detection mode of the external interrupt input pin

NMI and indicates the input signal level on the NMI pin.

Bit:

Initial value:

R/W:

987654321

Note:

The initial value is 1 when the level on the NMI pin is high, and 0 when the level on the pin is low.

000000000000000

RRRRRRR

R/W

RRRRRRRR

NMIL

------

NMIE

--------

Bit

Bit Name

Initial

Value

R/W

Description

NMIL

NMI Input Level

Indicates the state of the signal input to the NMI pin.

This bit can be read to determine the NMI pin level. This

bit cannot be modified.

0: State of the NMI input is low

1: State of the NMI input is high

14 to 9



All 0

Reserved

These bits are always read as 0. The write value should

always be 0.

NMIE

R/W

NMI Edge Select

0: Interrupt request is detected on the falling edge of the

NMI input

1: Interrupt request is detected on the rising edge of the

NMI input

7 to 0



All 0

Reserved

These bits are always read as 0. The write value should

always be 0.

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