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參數(shù)資料
型號: W741L260
廠商: WINBOND ELECTRONICS CORP
元件分類: 微控制器/微處理器
英文描述: 4-BIT MICROCONTROLLER
中文描述: 4-BIT, MROM, 1 MHz, MICROCONTROLLER, PQFP80
封裝: QFP-80
文件頁數(shù): 17/90頁
文件大小: 480K
代理商: W741L260
W741L260
Publication Release Date: March 1998
- 17 -
Revision A2
can be released in one of five ways: by the action of timer 0, timer 1, divider 0, divider 1 or the RC
port. Before the device enters the hold mode, the HEF, PEF, and IEF flags must be set to define the
hold mode release conditions. For more details, refer to the instruction-set table and the following flow
chart.
Divider 0, Divider 1,Timer 0
Timer1, Signal Change on
In
HOLD
Mode
IEF
Flag Set
PC <- (PC+1)
IEF
Flag Set
No
Yes
No
Yes
Yes
No
Yes
No
HOLD
HEF
Flag Set
Reset EVF.n Flag
Execute
Interrupt Service Routine
Reset EVF.n Flag
Execute
Interrupt Service Routine
Port RC
Interrupt
Enable
Interrupt
Enable
Yes
Yes
No
No
Disable interrupt
Disable interrupt
Note : The bit of EVF corresponding to the interrupt request signal will be reset.
(Note)
(Note)
Figure 8. Hold Mode and Interrupt Operation Flow Chart
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