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M38044F2HKP Datasheet(PDF) 263 Page - Renesas Technology Corp

No. de pieza M38044F2HKP
Descripción Electrónicos  8-BIT CISC SINGLE-CHIP MICROCOMPUTER 740 FAMILY / 38000 SERIES
PDF  387 Pages
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Fabricante Electrónico  RENESAS [Renesas Technology Corp]
Página de inicio  http://www.renesas.com
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M38044F2HKP Datasheet(HTML) 263 Page - Renesas Technology Corp

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APPLICATION
2.9 Watchdog timer
Rev.1.00 Jan 14, 2005
REJ09B0212-0100Z
3804 Group (Spec.H)
2.9 Watchdog timer
This paragraph explains the registers setting method and the notes relevant to the watchdog timer.
2.9.1 Memory map
Fig. 2.9.1 Memory map of registers relevant to watchdog timer
2.9.2 Relevant registers
Fig. 2.9.2 Structure of Watchdog timer control register
CPU mode register (CPUM)
Watchdog timer control register (WDTCON)
003B16
001E16
Address
Watchdog timer control register
b7 b6 b5 b4 b3 b2 b1 b0
Watchdog timer control register
(WDTCON: address 001E16)
b
6
0
STP instruction
disable bit
Watchdog timer H
count source selection
bit
0: STP instruction enabled
1: STP instruction disabled
0: Watchdog timer L
underflow
1: f(XIN)/16 or f(XCIN)/16
Functions
Name
At reset R W
7
0
0
1
1
1
2
1
3
1
4
1
5
1
Watchdog timer H
(for read-out of high-order 6 bit)



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