SH7032 Datasheet, PDF(373/687 Page) Renesas Technology Corp – 32-Bit RISC Microcomputer

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SH7032 Datasheet, PDF (373/687 Pages) Renesas Technology Corp – 32-Bit RISC Microcomputer

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TCNT

value

H'FF

Section 12 Watchdog Timer (WDT)

Overflow

H'00

Time

WT/IT = 1

TME = 1

WDTOVF

signal

Internal

reset signal*

H'00 written

in TCNT

WOVF = 1 WT/IT = 1

TME = 1

WDTOVF and

internal reset generated

H'00 written

in TCNT

128 Ï clocks

512 Ï clocks

WT/IT: Timer mode select bit

TME: Timer enable bit

Note: * The internal reset signal is only generated when the RSTE bit is 1.

Figure 12.4 Operation in Watchdog Timer Mode

Rev. 7.00 Jan 31, 2006 page 347 of 658

REJ09B0272-0700

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