参数资料
型号: MCHC705KJ1CDWE
厂商: Freescale Semiconductor
文件页数: 63/108页
文件大小: 0K
描述: IC MCU 8BIT 64 BYTES RAM 16SOIC
标准包装: 47
系列: HC05
核心处理器: HC05
芯体尺寸: 8-位
速度: 4MHz
外围设备: POR,WDT
输入/输出数: 10
程序存储器容量: 1.2KB(1.2K x 8)
程序存储器类型: OTP
RAM 容量: 64 x 8
电压 - 电源 (Vcc/Vdd): 3 V ~ 5.5 V
振荡器型: 内部
工作温度: -40°C ~ 85°C
封装/外壳: 16-SOIC(0.295",7.50mm 宽)
包装: 管件
Low-Power Modes
MC68HC705KJ1 MC68HRC705KJ1 MC68HLC705KJ1 Data Sheet, Rev. 4.1
58
Freescale Semiconductor
6.3 Effects of Stop and Wait Modes
The STOP and WAIT instructions have the following effects on MCU modules.
6.3.1 Clock Generation
Effects of STOP and WAIT on clock generation are discussed here.
6.3.1.1 STOP
The STOP instruction disables the internal oscillator, stopping the CPU clock and all peripheral clocks.
After exiting stop mode, the CPU clock and all enabled peripheral clocks begin running after the oscillator
stabilization delay.
NOTE
The oscillator stabilization delay holds the MCU in reset for the first 4064
internal clock cycles.
6.3.1.2 WAIT
The WAIT instruction disables the CPU clock.
After exiting wait mode, the CPU clock and all enabled peripheral clocks immediately begin running.
6.3.2 CPU
Effects of STOP and WAIT on the CPU are discussed here.
6.3.2.1 STOP
The STOP instruction:
Clears the interrupt mask (I bit) in the condition code register, enabling external interrupts
Disables the CPU clock
After exiting stop mode, the CPU clock begins running after the oscillator stabilization delay.
After exit from stop mode by external interrupt, the I bit remains clear.
After exit from stop mode by reset, the I bit is set.
6.3.2.2 WAIT
The WAIT instruction:
Clears the interrupt mask (I bit) in the condition code register, enabling interrupts
Disables the CPU clock
After exit from wait mode by interrupt, the I bit remains clear.
After exit from wait mode by reset, the I bit is set.
6.3.3 COP Watchdog
Effects of STOP and WAIT on the COP watchdog are discussed here.
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