HD64F7045F28V Datasheet, PDF(503/925 Page) Renesas Technology Corp – Renesas 32-Bit RISC Microcomputer SuperH RISC engine Family/SH7040 Series

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HD64F7045F28V Datasheet, PDF (503/925 Pages) Renesas Technology Corp – Renesas 32-Bit RISC Microcomputer SuperH RISC engine Family/SH7040 Series

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TCNT

value

H'FF

Overflow

H'00

Time

WT/IT = 1

TME = 1

H'00 written

in TCNT

WOVF = 1 WT/IT = 1

TME = 1

WDTOVF and

internal reset generated

H'00 written

in TCNT

WDTOVF

signal

Internal

reset signal*

128 Ï clocks

WT/IT: Timer mode select bit

TME: Timer enable bit

512 Ï clocks

Note: * Internal reset signal occurs only when the RSTE bit is set to 1.

Figure 13.4 Operation in the Watchdog Timer Mode

463

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