參數(shù)資料
型號： ST72C124J4B6
英文描述： IC-ST7 MICROCONTROLLER
中文描述： 集成電路ST7微控制器
文件頁數(shù)： 84/153頁
文件大?。?/td> 1988K
代理商： ST72C124J4B6
ST72334J/N, ST72314J/N, ST72124J
36/153
POWER SAVING MODES (Cont’d)
11.3 WAIT MODE
WAIT mode places the MCU in a low power con-
sumption mode by stopping the CPU.
This power saving mode is selected by calling the
‘WFI’ instruction.
All peripherals remain active. During WAIT mode,
the I bit of the CC register is cleared, to enable all
interrupts. All other registers and memory remain
unchanged. The MCU remains in WAIT mode until
an interrupt or RESET occurs, whereupon the Pro-
gram Counter branches to the starting address of
the interrupt or Reset service routine.
The MCU will remain in WAIT mode until a Reset
or an Interrupt occurs, causing it to wake up.
Refer to Figure 21.
Figure 21. WAIT Mode Flow-chart
Note:
1. Before servicing an interrupt, the CC register is
pushed on the stack. The I bit of the CC register is
set during the interrupt routine and cleared when
the CC register is popped.
WFI INSTRUCTION
RESET
INTERRUPT
Y
N
Y
CPU
OSCILLATOR
PERIPHERALS
I BIT
ON
0
OFF
FETCH RESET VECTOR
OR SERVICE INTERRUPT
CPU
OSCILLATOR
PERIPHERALS
I BIT
ON
OFF
0
ON
CPU
OSCILLATOR
PERIPHERALS
I BIT
ON
X 1)
ON
4096 CPU CLOCK CYCLE
DELAY
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相關代理商/技術參數(shù)
參數(shù)描述
ST72C124J4T6 制造商:STMicroelectronics 功能描述:
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ST72C215G2M3 制造商:STMicroelectronics 功能描述:MCU 8-Bit ST7 CISC 8KB Flash 3.3V/5V 28-Pin SO Tube 制造商:STMicroelectronics 功能描述:MCU 8BIT ST7 CISC 8KB FLASH 3.3V/5V 28SOIC - Rail/Tube
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