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參數(shù)資料
| 型號(hào)： | MSP430L092CY |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | RISC MICROCONTROLLER, UUC14 |
| 封裝： | DIE |
| 文件頁數(shù)： | 42/44頁 |
| 文件大?。?/td> | 682K |
| 代理商： | MSP430L092CY |
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MSP430L092
MSP430C09x
www.ti.com
SLAS673 – SEPTEMBER 2010
Operating Modes
The MSP430 has one active mode and five software-selectable low-power modes of operation. An interrupt
event can wake up the device from any of the five low-power modes, service the request, and restore back to the
low-power mode on return from the interrupt program.
The following six operating modes can be configured by software:
Active mode (AM)
–
All clocks are active
Low-power mode 0 (LPM0)
–
CPU is disabled
–
ACLK and SMCLK remain active for all sources
–
MCLK is disabled
Low-power mode 1 (LPM1)
–
CPU is disabled
–
ACLK and SMCLK remain active (for LF oscillator and CLKIN as source, HF oscillator is mapped to LF
oscillator as source)
–
MCLK is disabled
Low-power mode 2 (LPM2)
–
CPU is disabled
–
MCLK is disabled
–
SMCLK is disabled
–
ACLK remains active for all sources
Low-power mode 3 (LPM3)
–
CPU is disabled
–
MCLK is disabled
–
SMCLK is disabled
–
ACLK remains active (for LF oscillator and CLKIN as source, HF oscillator is mapped to LF oscillator as
source)
Low-power mode 4 (LPM4)
–
CPU is disabled
–
MCLK is disabled
–
SMCLK is disabled
–
ACLK is disabled
–
Oscillators are stopped
LPM2 vs LPM3
If only MCLK is feed by the HF oscillator (SELA
≠ 00, SELS ≠ 00, SELM = 00 of CCSCTL4 register) the following
behavior is implemented:
Entering LPM2 turns off the HF oscillator and starts again with the HF oscillator selected for MCLK
Entering LPM3 turns off the HF oscillator and starts again with the LF oscillator selected for MCLK
The only difference between LPM2 and LPM3 is the selection of the source for MCLK when re-entering active
mode and, therefore, and the level of power savings.
Copyright 2010, Texas Instruments Incorporated
7
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