M38045F2HKP datasheet(263/387 Pages) RENESAS

Teilenummer	M38045F2HKP

Bauteilbeschribung	8-BIT CISC SINGLE-CHIP MICROCOMPUTER 740 FAMILY / 38000 SERIES

PDF	387 Pages

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Hersteller	RENESAS [Renesas Technology Corp]

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APPLICATION

2.9 Watchdog timer

Rev.1.00 Jan 14, 2005

REJ09B0212-0100Z

3804 Group (Spec.H)

2.9 Watchdog timer

This paragraph explains the registers setting method and the notes relevant to the watchdog timer.

2.9.1 Memory map

Fig. 2.9.1 Memory map of registers relevant to watchdog timer

2.9.2 Relevant registers

Fig. 2.9.2 Structure of Watchdog timer control register

CPU mode register (CPUM)

Watchdog timer control register (WDTCON)

003B16

001E16

Address

Watchdog timer control register

b7 b6 b5 b4 b3 b2 b1 b0

Watchdog timer control register

(WDTCON: address 001E16)

STP instruction

disable bit

Watchdog timer H

count source selection

bit

0: STP instruction enabled

1: STP instruction disabled

0: Watchdog timer L

underflow

1: f(XIN)/16 or f(XCIN)/16

Functions

Name

At reset R W

Watchdog timer H

(for read-out of high-order 6 bit)

M38045F2HKP Datenblatt(PDF) 263 Page - Renesas Technology Corp