參數(shù)資料
型號: MB90573PFV
廠商: FUJITSU LTD
元件分類: 微控制器/微處理器
英文描述: 16-bit Proprietary Microcontroller
中文描述: 16-BIT, MROM, 16 MHz, MICROCONTROLLER, PQFP120
封裝: 20 X 20 MM, 3.85 MM HEIGHT, 0.50 MM PITCH, PLASTIC, QFP-120
文件頁數(shù): 40/135頁
文件大小: 2504K
代理商: MB90573PFV
40
MB90570 Series
3. Watchdog Timer
The watchdog timer is a 2-bit counter operating with an output of the timebase timer and resets the CPU when
the counter is not cleared for a preset period of time.
(1) Register Configuration
(2) Block Diagram
Watchdog timer control register (WDTC)
Address
0000A8
H
bit 15 . . . . . . . . . . . .
PONR STBR WRST ERST
SRST
WTE
WT1
WT0
(TBTC)
R : Read only
W: Write only
X : Indeterminate
bit 7
bit 6
bit 5
bit 4
bit 3
bit 2
bit 1
bit 0
R
R
R
R
R
W
W
W
Initial value
XXXXXXXX
B
HCLK: Oscillation clock
PONR STBR WRST ERST SRST WTE
WT1
WT0
Watchdog timer control register (WDTC)
Start sleep mode
Start hold status
Start stop mode
CLR and start
Watchdog timer
Overflow
To internal reset
generation circuit
Counter clear
control circuit
Count clock
selector
2-bit
counter
Watchdog timer
reset generation
circuit
Clear
Divided-by-2
of HCLK
(Timebase timer counter)
×
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
CLR
2
4
CLR
相關(guān)PDF資料
PDF描述
MB90574 16-bit Proprietary Microcontroller
MB90574C 16-bit Proprietary Microcontroller
MB90574PFF Octal Buffers/Drivers With 3-State Outputs 20-LCCC -55 to 125
MB90574PFV Octal Buffers/Drivers With 3-State Outputs 20-CFP -55 to 125
MB90574CPFV 16-bit Proprietary Microcontroller
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