H838024 datasheet(346/697 Pages) RENESAS

Part #	H838024

Description	Renesas 8-Bit Single-Chip Microcomputer Super Low Power Series

PDF	697 Pages

Scroll/Zoom	100%

Manufacturer	RENESAS [Renesas Technology Corp]

Direct Link	http://www.renesas.com

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346 / 697 page

Section 9 Timers

Rev. 7.00 Mar 10, 2005 page 304 of 652

REJ09B0042-0700

Bit 5—Bit 4 Write Disable (B4WI)

Bit 5 controls the writing of data to bit 4 in TCSRW.

Bit 5

B4WI

Description

Bit 4 is write-enabled

Bit 4 is write-protected

(initial value)

This bit is always read as 1. Data written to this bit is not stored.

Bit 4—Timer Control/Status Register W Write Enable (TCSRWE)

Bit 4 controls the writing of data to bits 2 and 0 in TCSRW.

Bit 4

TCSRWE

Description

Data cannot be written to bits 2 and 0

(initial value)

Data can be written to bits 2 and 0

Bit 3—Bit 2 Write Inhibit (B2WI)

Bit 3 controls the writing of data to bit 2 in TCSRW.

Bit 3

B2WI

Description

Bit 2 is write-enabled

Bit 2 is write-protected

(initial value)

This bit is always read as 1. Data written to this bit is not stored.

Bit 2—Watchdog Timer On (WDON)

Bit 2 enables watchdog timer operation.

H838024 Datasheet(PDF) 346 Page - Renesas Technology Corp