參數(shù)資料
型號(hào): 87C575
廠商: NXP Semiconductors N.V.
英文描述: 80C51 8-bit microcontroller family(80C51 8位微控制器系列)
中文描述: 80C51的8位單片機(jī)系列(80C51的8位微控制器系列)
文件頁數(shù): 19/40頁
文件大?。?/td> 383K
代理商: 87C575
Philips Semiconductors
Product specification
80C575/83C575/
87C575
80C51 8-bit microcontroller family
8K/256 OTP/ROM/ROMless, 4 comparator, failure detect circuitry, watchdog timer
1998 May 01
19
PRE2
PRE1
PRE0
LVRE
OFRE
WDRUN
WDTOF
WDMOD
WDCON
(C0H)
8COUNTER
PRESCALER
OSC/12
MOV WFEED1,#0A5H
MOV WFEED2,#5AH
WATCHDOG FEED SEQUENCE
SHADOW REGISTER
FOR WDCON
ROM–CODE
CONTENT
WD
PRE2:0
WDMOD
ADDRESS
2032H
2031H
2030H
1
SU00241
Figure 15. Watchdog Timer of 83C575 in Watchdog Mode (EA = 1, WDMOD = 1)
PRE2
PRE1
PRE0
LVRE
OFRE
WDRUN
WDTOF
WDMOD
WDCON
(C0H)
8–BIT DOWN
COUNTER
PRESCALER
OSC/12
MOV WFEED1,#0A5H
MOV WFEED2,#5AH
WATCHDOG FEED SEQUENCE
SHADOW REGISTER
FOR WDCON
ROM–CODE
CONTENT
WD
PRE2:0
WDMOD
ADDRESS
2032H
2031H
2030H
0
SU00242
Figure 16. Watchdog Timer of 83C575 in Timer Mode (EA = 1, WDMOD = 0)
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