H8SX1663 datasheet(148/1158 Pages) RENESAS

148 / 1158 page

Section 5 Interrupt Controller

Rev.1.00 Jun. 07, 2006 Page 96 of 1102

REJ09B0294-0100

5.3.1

Interrupt Control Register (INTCR)

INTCR selects the interrupt control mode, and the detected edge for NMI.

Bit

Bit Name

Initial Value

R/W



INTM1

R/W

INTM0

R/W

NMIEG

R/W



Bit

Bit Name

Initial

Value

R/W

Description



Reserved

These are read-only bits and cannot be modified.

INTM1

INTM0

R/W

Interrupt Control Select Mode 1 and 0

These bits select either of two interrupt control modes for

the interrupt controller.

00: Interrupt control mode 0

Interrupts are controlled by I bit in CCR.

01: Setting prohibited.

10: Interrupt control mode 2

Interrupts are controlled by bits I2 to I0 in EXR, and

IPR.

11: Setting prohibited.

NMIEG

R/W

NMI Edge Select

Selects the input edge for the NMI pin.

0: Interrupt request generated at falling edge of NMI input

1: Interrupt request generated at rising edge of NMI input

2 to 0



All 0

Reserved

These are read-only bits and cannot be modified.

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