參數(shù)資料
型號: 68HC05PL4B
廠商: Motorola, Inc.
英文描述: 8-Bit Microcontroller Units (MCU).(8位微控制器)
中文描述: 8位微控制器單元(MCU)。(8位微控制器)
文件頁數(shù): 42/98頁
文件大?。?/td> 1019K
代理商: 68HC05PL4B
GENERAL RELEASE SPECIFICATION
April 30, 1998
MOTOROLA
6-2
OPERATING MODES
MC68HC05PL4
REV 2.0
6.2
LOW POWER MODES
In each of its configuration modes the MC68HC05PL4 is capable of running in one
of two low-power operating modes. The WAIT and STOP instructions provide two
modes that reduce the power required for the MCU by stopping various internal
clocks and/or the oscillator. The flow of the STOP, and WAIT modes are shown in
Figure 6-1
.
6.2.1 STOP Mode
Execution of the STOP instruction places the MCU in its lowest power
consumption mode.
The MCU can exit from the STOP by an IRQ or Keyboard interrupt (KBIx), or an
externally generated RESET. When exiting the STOP mode the internal oscillator
will resume after 4064 internal processor clock cycles oscillator stabilization delay.
6.2.2 WAIT Mode
The WAIT instruction places the MCU in a low-power mode, which consumes
more power than the STOP Mode.
The WAIT mode may be exited by an external IRQ, a keyboard interrupt, 16-bit
timer interrupt, 8-bit timer interrupt, or by an external RESET.
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