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參數(shù)資料
| 型號： | MC68HC705F8FU |
| 廠商： | MOTOROLA INC |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | 8-BIT, OTPROM, 1.8 MHz, MICROCONTROLLER, PQFP64 |
| 封裝： | QFP-64 |
| 文件頁數(shù)： | 4/126頁 |
| 文件大?。?/td> | 736K |
| 代理商： | MC68HC705F8FU |
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MC68HC05F8
MOTOROLA
11-1
LOW POWER MODES
11
LOW POWER MODES
The STOP and WAIT instructions have different effects on the Timers, Serial Peripheral Interface
(SPI), and DTMF/Melody Generator (DMG). These are discussed in the following paragraphs.
11.1
Stop Mode
When the processor executes the STOP instruction, the internal clock is turned off. This halts all
internal CPU processing, including the operation of the Programmable Timer, SPI and DMG. The
I bit in the Condition Code register is cleared to enable external interrupts (INTE1, INTE2 and
KEYE bits are unaltered). All registers and memory remain unaltered, and all input/output lines
remain unchanged.
The MCU is exited from Stop mode by an interrupt on either IRQ1 or IRQ2, or any keyboard
interrupts, or any resets (logic low on RESET pin or a power-on reset). On exit from Stop mode,
the program counter is loaded with the corresponding interrupt vector (see Table 5-1). The effects
of the Stop mode on each of the MCU peripheral systems are described separately.
11.1.1
Timer A during Stop Mode
When Stop mode is entered, the timer A (programmable timer) counter stops counting (the
internal processor clock is stopped) and remains at that particular count value until the Stop mode
is exited. If the exit was caused by reset, the counter is forced to $FFFC. If the Stop mode is exited
by an interrupt (IRQ1, IRQ2, or keyboard interrupt), the counter resumes counting from the value
when it entered the Stop mode. Another feature of the programmable timer in the Stop mode is,
that if at least one valid input capture edge occurs at the TCAP pin, the input capture detect
circuitry is armed. This action does not set any timer ags or “wake up” the MCU, but when the
MCU does “wake up” there will be an active input capture ag (and data) from that rst valid edge
which occurred during the Stop mode. Notice that an exit by a reset will reset the entire MCU and
thus, this function on the TCAP will not happen.
TPG
99
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| MC68HC705G1B | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
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| MC68HC705J1ACP | 功能描述:IC MCU 4MHZ 1.2K OTP 20-DIP RoHS:否 類別:集成電路 (IC) >> 嵌入式 - 微控制器， 系列:HC05 其它有關(guān)文件:STM32F101T8 View All Specifications 特色產(chǎn)品:STM32 32-bit Cortex MCUs 標準包裝:490 系列:STM32 F1 核心處理器:ARM? Cortex?-M3 芯體尺寸:32-位 速度:36MHz 連通性:I²C，IrDA，LIN，SPI，UART/USART 外圍設(shè)備:DMA，PDR，POR，PVD，PWM，溫度傳感器，WDT 輸入/輸出數(shù):26 程序存儲器容量:64KB（64K x 8） 程序存儲器類型:閃存 EEPROM 大小:- RAM 容量:10K x 8 電壓 - 電源 (Vcc/Vdd):2 V ~ 3.6 V 數(shù)據(jù)轉(zhuǎn)換器:A/D 10x12b 振蕩器型:內(nèi)部 工作溫度:-40°C ~ 85°C 封裝/外殼:36-VFQFN，36-VFQFPN 包裝:托盤 配用:497-10030-ND - STARTER KIT FOR STM32497-8853-ND - BOARD DEMO STM32 UNIV USB-UUSCIKSDKSTM32-PL-ND - KIT IAR KICKSTART STM32 CORTEXM3497-8512-ND - KIT STARTER FOR STM32F10XE MCU497-8505-ND - KIT STARTER FOR STM32F10XE MCU497-8304-ND - KIT STM32 MOTOR DRIVER BLDC497-6438-ND - BOARD EVALUTION FOR STM32 512K497-6289-ND - KIT PERFORMANCE STICK FOR STM32MCBSTM32UME-ND - BOARD EVAL MCBSTM32 + ULINK-MEMCBSTM32U-ND - BOARD EVAL MCBSTM32 + ULINK2更多... 其它名稱:497-9032STM32F101T8U6-ND |
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