參數(shù)資料
型號: MC68HC705P6ACP
廠商: MOTOROLA INC
元件分類: 微控制器/微處理器
英文描述: HCMOS Microcontroller Unit
中文描述: 8-BIT, OTPROM, 2.1 MHz, MICROCONTROLLER, PDIP28
封裝: PLASTIC, DIP-28
文件頁數(shù): 40/130頁
文件大?。?/td> 1541K
代理商: MC68HC705P6ACP
Operating Modes
Advance Information
MC68HC705P6A
Rev. 2.0
40
Operating Modes
MOTOROLA
timer (a feature of the stop mode), which has been free-running (a
feature of the wait mode).
3.5.2 WAIT Instruction
The WAIT instruction places the MCU in a low-power mode which
consumes more power than stop mode. In wait mode, the internal clock
is halted, suspending all processor and internal bus activity. Internal
timer clocks remain active, permitting interrupts to be generated from the
16-bit timer and reset to be generated from the COP watchdog timer.
Execution of the WAIT instruction automatically clears the I bit in the
condition code register, enabling the IRQ external interrupt. All other
registers, memory, and input/output lines remain in their previous state.
If the 16-bit timer interrupt is enabled, it will cause the processor to exit
wait mode and resume normal operation. The 16-bit timer may be used
to generate a periodic exit from wait mode. Wait mode may also be
exited when an IRQ external interrupt or RESET occurs.
3.6 COP Watchdog Timer Considerations
The COP watchdog timer is active in user mode of operation when the
COP bit in the MOR is set. Executing the STOP instruction when the
SWAIT bit in the MOR is clear will cause the COP to be disabled.
Therefore, it is recommended that the STOP instruction be modified to
produce halt mode (set bit SWAIT in the MOR) if the COP watchdog
timer is required to function at all times.
Furthermore, it is recommended that the COP watchdog timer be
disabled for applications that will use the wait mode for time periods that
will exceed the COP timeout period.
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MC68HC705P6ADW 制造商:Rochester Electronics LLC 功能描述:MCU, 176 BYTES RAM, A/D - Bulk
MC68HC705P6AMDW 功能描述:IC MCU 4.6K OTP 2.1MHZ 28-SOIC RoHS:否 類別:集成電路 (IC) >> 嵌入式 - 微控制器, 系列:HC05 標(biāo)準(zhǔn)包裝:250 系列:56F8xxx 核心處理器:56800E 芯體尺寸:16-位 速度:60MHz 連通性:CAN,SCI,SPI 外圍設(shè)備:POR,PWM,溫度傳感器,WDT 輸入/輸出數(shù):21 程序存儲器容量:40KB(20K x 16) 程序存儲器類型:閃存 EEPROM 大小:- RAM 容量:6K x 16 電壓 - 電源 (Vcc/Vdd):2.25 V ~ 3.6 V 數(shù)據(jù)轉(zhuǎn)換器:A/D 6x12b 振蕩器型:內(nèi)部 工作溫度:-40°C ~ 125°C 封裝/外殼:48-LQFP 包裝:托盤 配用:MC56F8323EVME-ND - BOARD EVALUATION MC56F8323
MC68HC705P6AMP 制造商:Rochester Electronics LLC 功能描述:- Bulk
MC68HC705P6CDW 制造商:Motorola Inc 功能描述:
MC68HC705P6CP 制造商:Freescale Semiconductor 功能描述: 制造商:Motorola Inc 功能描述: