HD64F36022G datasheet(97/384 Pages) RENESAS

Part #	HD64F36022G

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 6 Power-Down Modes

Rev. 4.00 Sep. 23, 2005 Page 71 of 354

REJ09B0025-0400

6.1.2

System Control Register 2 (SYSCR2)

SYSCR2 controls the power-down modes, as well as SYSCR1.

Bit

Bit Name

Initial

Value

R/W

Description

SMSEL

R/W

Sleep Mode Selection

This bit selects the mode to transit after the execution of

a SLEEP instruction, as well as bit SSBY of SYSCR1.

For details, see table 6.2.



Reserved

This bit is always read as 0.

DTON

R/W

Direct Transfer on Flag

This bit selects the mode to transit after the execution of

a SLEEP instruction, as well as bit SSBY of SYSCR1.

For details, see table 6.2.

MA2

MA1

MA0

R/W

Active Mode Clock Select 2 to 0

These bits select the operating clock frequency in active

and sleep modes. The operating clock frequency

changes to the set frequency after the SLEEP instruction

is executed.

0XX:

OSC

100:

OSC/8

101:

OSC/16

110:

OSC/32

111:

OSC/64

1, 0



All 0



Reserved

These bits are always read as 0.

Legend: X : Don't care.

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