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UPD17708 데이터시트(PDF) 323 Page - NEC

부품명 UPD17708
상세설명  4-BIT SINGLE-CHIP MICROCONTROLLERS WITH DEDICATED HARDWARE FOR DIGITAL TUNING SYSTEM
PDF  356 Pages
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제조업체  NEC [NEC]
홈페이지  http://www.nec.com/
Logo NEC - NEC

UPD17708 데이터시트(HTML) 323 Page - NEC

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µPD17704, 17705, 17707, 17708, 17709
The WDTRES flag is used to reset the watchdog timer counter.
When this flag is set to 1, the watchdog timer counter is automatically reset.
If the WDTRES flag is set to 1 once within a reference time in which the WDTCK0 and WDTCK1 flags are set, the
reset signal is not output by the watchdog timer.
Figure 21-13. Configuration of Watchdog Timer Counter Reset Register
Name
Flag symbol
b3
W
D
T
R
E
S
b2
0
b1
0
b0
0
Address
03H
Read/Write
W&Reset
Watchdog timer
counter reset
Power-ON reset
WDT&SP reset
CE reset
Clock stop
U
U
U
U
000
0
1
Invalid
Resets watchdog timer counter
Resets watchdog timer counter
Fixed to “0”
U: Undefined



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