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HD6432351 데이터시트(PDF) 567 Page - Renesas Technology Corp

부품명 HD6432351
상세설명  16-Bit Single-Chip Microcomputer
PDF  1025 Pages
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제조업체  RENESAS [Renesas Technology Corp]
홈페이지  http://www.renesas.com
Logo RENESAS - Renesas Technology Corp

HD6432351 데이터시트(HTML) 567 Page - Renesas Technology Corp

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Section 12 Watchdog Timer (WDT)
Rev. 3.00 Sep 15, 2006 page 533 of 988
REJ09B0330-0300
12.1.3
Pin Configuration
Table 12.1 describes the WDT output pin.
Table 12.1 WDT Pin
Name
Symbol
I/O
Function
Watchdog timer overflow
WDTOVF Output
Outputs counter overflow signal in watchdog
timer mode
12.1.4
Register Configuration
The WDT has three registers, as summarized in table 12.2. These registers control clock selection,
WDT mode switching, and the reset signal.
Table 12.2 WDT Registers
Address*
1
Name
Abbreviation
R/W
Initial Value
Write*
2
Read
Timer control/status register
TCSR
R/(W)*
3
H'18
H'FFBC
H'FFBC
Timer counter
TCNT
R/W
H'00
H'FFBC
H'FFBD
Reset control/status register
RSTCSR
R/(W)*
3
H'1F
H'FFBE
H'FFBF
Notes: 1. Lower 16 bits of the address.
2. For details of write operations, see section 12.2.4, Notes on Register Access.
3. Only a write of 0 is permitted to bit 7, to clear the flag.



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