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參數資料
型號: W7411250
廠商: WINBOND ELECTRONICS CORP
英文描述: 4-BIT Microcontroller(4位的微控制器)
中文描述: 4位微控制器(第4位的微控制器)
文件頁數: 14/86頁
文件大小: 478K
代理商: W7411250
W741L250
- 14 -
Hold Mode Operation
In hold mode, all operations of the
μ
C cease, except for the operation of the oscillator, timer, and
LCD driver. The
μ
C enters hold mode when the HOLD instruction is executed. The hold mode can be
released in one of five ways: by the action of Timer 0, Timer 1, Divider 0, the
INT
pin, 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, Timer 0, Timer 1
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
INT, Signal Change on
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
相關PDF資料
PDF描述
W741L250 4-BIT MICROCONTROLLER
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W741C203 4-BIT Microcontroller(多次可編程4位的微控制器)
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