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參數(shù)資料
| 型號(hào)： | L9805 |
| 廠商： | 意法半導(dǎo)體 |
| 元件分類： | 基準(zhǔn)電壓源/電流源 |
| 英文描述： | Super Smart Power Motor Driver with 8-BIT MCU, CAN Interface, 16K EPROM, 256Bytes RAM, 128 Bytes EEPROM, 10 Bit ADC, WDG, 2 Timers, 2 PWM Modules, Ful |
| 中文描述： | 超級智能型電動(dòng)馬達(dá)驅(qū)動(dòng)器，帶有8位微控制器，CAN接口，16K的存儲(chǔ)器，256Bytes RAM內(nèi)存，128字節(jié)EEPROM，10位ADC，水分散粒劑，2定時(shí)器，2個(gè)PWM模塊，涪陵 |
| 文件頁數(shù)： | 24/103頁 |
| 文件大小： | 853K |
| 代理商： | L9805 |
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L9805
3.7 POWER SAVING MODES
3.7.1 Introduction
There are three Power Saving modes. The Slow
Mode may be selected by setting the relevant bits
in the Miscellaneous register as detailed in
Section
3.4
. Wait and Halt modes may be entered using
the WFI and HALT instructions.
3.7.2 Slow Mode
In Slow mode, the oscillator frequency can be di-
vided by 4, 8, 16 or 32 rather than by 2. The CPU
and peripherals (except CAN, see Note) are
clocked at this lower frequency. Slow mode is
used to reduce power consumption.
Note:
Before entering Slow mode and to guaran-
tee low power operations, the CAN Controller
must be placed by software in STANDBY mode.
3.7.3 Wait Mode
Wait mode places the MCU in a low power con-
sumption mode by stopping the CPU. All peripher-
als remain active. During Wait mode, the I bit (CC
Register) is cleared, so as to enable all interrupts.
All other registers and memory remain un-
changed. The MCU will remain 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 (coming from CAN, Timers 1 & 2,
EEPROM, ADC, PWM 1 & 2, I/O ports peripherals
and Power Bridge) occurs, causing its wake-up.
Refer to
Figure 12
below.
Figure 12. Wait Mode Flow Chart
WAIT INSTRUCTION
RESET
FETCH RESET VECTOR
OR SERVICE INTERRUPT
INTERRUPT
Y
N
N
Y
CPU CLOCK
I-BIT
OSCILLATOR
PERIPH. CLOCK
ON
ON
ON
SET
CPU CLOCK
I-BIT
OSCILLATOR
PERIPH. CLOCK
ON
ON
OFF
CLEARED
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| L9805E | 功能描述:馬達(dá)/運(yùn)動(dòng)/點(diǎn)火控制器和驅(qū)動(dòng)器 Super Smart Power 8-Bit MCU, RAM RoHS:否 制造商:STMicroelectronics 產(chǎn)品:Stepper Motor Controllers / Drivers 類型:2 Phase Stepper Motor Driver 工作電源電壓:8 V to 45 V 電源電流:0.5 mA 工作溫度:- 25 C to + 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:HTSSOP-28 封裝:Tube |
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