参数资料
型号: MB90587CPMC
元件分类: 微控制器/微处理器
英文描述: MICROCONTROLLER, PQFP100
封装: 14 X 14 MM, 1.70 MM HEIGHT, 0.65 MM PITCH, PLASTIC, LQFP-100
文件页数: 51/112页
文件大小: 2372K
代理商: MB90587CPMC
MB90580C Series
DS07-13710-6E
43
3.
Watchdog Timer
The watchdog timer consists of a 2-bit watchdog counter using carry signals from the 18-bit time-base timer as
the clock source, a control register, and a watchdog reset control section.
(1) Register configuration
(2) Block Diagram
Watchdog timer control register
bit
76543210
Address
: 0000A8H
PONR STBR WRST ERST SRST WTE WT1
WT0
WDTC
Access
(R)
(W)
Initial value
(X)
(1)
TBTC
PONR
STBR
WRST
ERST
SRST
TBC0
TBR
TBIE
TBOF
TBC1
WT1
WT0
WTE
WTC
WDCS
SCE
WTC2
WTC1
WTC0
WTR
WTIE
WTOF
WDTC
AND
CLR
OF
CLR
212
214
216
219
TBTRES
29
210
211
212
213
214
215
WTRES
211 213 215 218
210 213 214 215
QR
S
AND
Q
R
S
AND
Q
R
S
Time-base
interrupt
Watch
interrupt
Selector
Main clock
Clock input
Time-base timer
Watchdog reset
generator
2-bit
counter
Watch timer
Clock input
To WDGRST
internal reset
generator
From power-on reset
generator
Subclock
From RST bit in STBYC
register
From RST pin
F
2 MC-16LX
bus
From hardware
standby control circuit
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