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SH7014 Datasheet(PDF) 337 Page - Renesas Technology Corp

Part # SH7014
Description  32-Bit RISC Microcomputer
PDF  754 Pages
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Manufacturer  RENESAS [Renesas Technology Corp]
Direct Link  http://www.renesas.com
Logo RENESAS - Renesas Technology Corp

SH7014 Datasheet(HTML) 337 Page - Renesas Technology Corp

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11. Watchdog Timer (WDT)
Rev.5.00 Sep. 27, 2007 Page 303 of 716
REJ09B0398-0500
11.4.4
System Reset with
WDTOVF
If a
WDTOVF signal is input to the RES pin, the LSI cannot initialize correctly.
Avoid logical input of the
WDTOVF output signal to the RES input pin. To reset the entire system
with the
WDTOVF signal, use the circuit shown in figure 11.9.
Reset input
Reset signal to
entire system
SH7014/16/17
RES
WDTOVF
Figure 11.9 Example of a System Reset Circuit with a
WDTOVF Signal
11.4.5
Internal Reset with the Watchdog Timer
If the RSTE bit is cleared to 0 in the watchdog timer mode, the LSI will not reset internally when a
TCNT overflow occurs, but the TCNT and TCSR in the WDT will reset.



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