HD64F36049 datasheet(79/562 Pages) RENESAS

Part #	HD64F36049

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

PDF	562 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. 3.00 Mar. 15, 2006 Page 47 of 526

REJ09B0060-0300

3.2.1

Interrupt Edge Select Register 1 (IEGR1)

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

NMI and IRQ3 to

IRQ0.

Bit

Bit Name

Initial

Value

R/W

Description

NMIEG

R/W

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.

IEG3

R/W

IRQ3 Edge Select

0: Falling edge of

IRQ3 pin input is detected

1: Rising edge of

IRQ3 pin input is detected

IEG2

R/W

IRQ2 Edge Select

0: Falling edge of

IRQ2 pin input is detected

1: Rising edge of

IRQ2 pin input is detected

IEG1

R/W

IRQ1 Edge Select

0: Falling edge of

IRQ1 pin input is detected

1: Rising edge of

IRQ1 pin input is detected

IEG0

R/W

IRQ0 Edge Select

0: Falling edge of

IRQ0 pin input is detected

1: Rising edge of

IRQ0 pin input is detected

HD64F36049 Datasheet(PDF) 79 Page - Renesas Technology Corp

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