參數(shù)資料
型號(hào): MB90803
廠商: Fujitsu Limited
英文描述: 16-bit Proprietary Microcontroller CMOS
中文描述: 16位微控制器專有的CMOS
文件頁(yè)數(shù): 53/88頁(yè)
文件大?。?/td> 385K
代理商: MB90803
MB90800 Series
53
12. Watchdog timer
The watchdog timer is a 2-bit counter operating with an output of the timebase timer or watch timer and resets
the CPU when the counter is not cleared for a preset period of time.
(1) Register list
(2) Block diagram
Watchdog timer control register (WDTC)
0000A8
H
Initial Value
(
)
( X )
( R )
( X )
( R )
( X )
( R )
( X )
( W )
( 1 )
( W )
( 1 )
( W )
( 1 )
7
6
5
4
3
2
1
0
( R )
( X )
PONR
WRST
ERST
SRST
WTE
WT1
WT0
PONR
WRST ERST SRST WTE
WT1
WT0
×
2
1
×
2
2
×
2
8
×
2
9
×
2
10
×
2
11
×
2
12
×
2
13
×
2
14
×
2
15
×
2
16
×
2
17
×
2
18
×
2
1
SCLK
CLR
CLR
×
2
2
×
2
8
×
2
9
×
2
10
×
2
11
×
2
12
×
2
13
×
2
14
×
2
15
×
2
16
×
2
17
×
2
18
2
4
4
Watchdog timer control register (WDTC)
Watchdog timer
Watch mode start
Timebase timer mode start
Sleep mode start
Hold status start
Counter
clear control
circuit
Count
clock
selector
2-bit
counter
Watchdog reset
generation
circuit
Clear
Internal
reset
generation
circuit
CLR and start-up
Time base counter
Dividing HCLK by 2
HCLK: Oscillation clock
SCLK: Sub clock
WDCS bit of watch timer
control register (WTO)
SCM bit of clock selection
register (CKSCR)
Stop mode start
相關(guān)PDF資料
PDF描述
MB90803PF 16-bit Proprietary Microcontroller CMOS
MB90803SPF 16-bit Proprietary Microcontroller CMOS
MB90F804 16-bit Proprietary Microcontroller CMOS
MB90F804-101PF-G 16-bit Proprietary Microcontroller CMOS
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MB90803PF 制造商:FUJITSU 制造商全稱:Fujitsu Component Limited. 功能描述:16-bit Proprietary Microcontroller CMOS
MB90803PF-G 制造商:FUJITSU 制造商全稱:Fujitsu Component Limited. 功能描述:16-bit Microcontroller
MB90803S 制造商:FUJITSU 制造商全稱:Fujitsu Component Limited. 功能描述:16-bit Microcontroller
MB90803SPF 制造商:FUJITSU 制造商全稱:Fujitsu Component Limited. 功能描述:16-bit Proprietary Microcontroller CMOS
MB90803SPF-G 制造商:FUJITSU 制造商全稱:Fujitsu Component Limited. 功能描述:16-bit Microcontroller