HD64F36022 datasheet(73/384 Pages) RENESAS

Part #	HD64F36022

Description	Renesas 16-Bit Single-Chip Microcomputer H8 Family/H8/300H Tiny Series

PDF	384 Pages

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Manufacturer	RENESAS [Renesas Technology Corp]

Direct Link	http://www.renesas.com

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Section 3 Exception Handling

Rev. 4.00 Sep. 23, 2005 Page 47 of 354

REJ09B0025-0400

3.2

Interrupts are controlled by the following registers.

• Interrupt edge select register 1 (IEGR1)

• Interrupt edge select register 2 (IEGR2)

• Interrupt enable register 1 (IENR1)

• Interrupt flag register 1 (IRR1)

• Wakeup interrupt flag register (IWPR)

3.2.1

Interrupt Edge Select Register 1 (IEGR1)

IEGR1 selects the direction of an edge that generates interrupt requests of pins and

IRQ3 and

IRQ0.

Bit

Bit Name

Initial

Value

R/W

Description



−

Reserved

This bit is always read as 0.

6 to 4



All 1



Reserved

These bits are always read as 1.

IEG3

R/W

IRQ3 Edge Select

0: Falling edge of

IRQ3 pin input is detected

1: Rising edge of

IRQ3 pin input is detected

2, 1



All 0



Reserved

These bits are always read as 0.

IEG0

R/W

IRQ0 Edge Select

0: Falling edge of

IRQ0 pin input is detected

1: Rising edge of

IRQ0 pin input is detected

HD64F36022 Datasheet(PDF) 73 Page - Renesas Technology Corp

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