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7477 Datasheet(PDF) 281 Page - Renesas Technology Corp

Part # 7477
Description  8-BIT SINGLE-CHIP MICROCOMPUTER 740 FAMILY / 7470 SERIES
PDF  361 Pages
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Manufacturer  RENESAS [Renesas Technology Corp]
Direct Link  http://www.renesas.com
Logo RENESAS - Renesas Technology Corp

7477 Datasheet(HTML) 281 Page - Renesas Technology Corp

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2-55
7470/7471/7477/7478 GROUP USER’S MANUAL
APPLICATION
2.9 Countermeasures against noise
7470
7471
7477
7478
Fig. 2.9.9
Watchdog timer by software
Main routine
Main routine
errors
Interrupt processing routine
Interrupt processing
Interrupt processing
routine errors
Main processing
← N
(SWDT)
(SWDT)
(SWDT)
← (SWDT)—1
(SWDT)
= N ?
≤ 0 ?
> 0
≤ 0
RTI
Return
= N
≠ N
CLI



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