參數資料
型號: MC68HC05C9ACB
廠商: FREESCALE SEMICONDUCTOR INC
元件分類: 微控制器/微處理器
英文描述: 8-BIT, MROM, 2.1 MHz, MICROCONTROLLER, PDIP42
封裝: SHRINK, PLASTIC, DIP-42
文件頁數: 108/160頁
文件大?。?/td> 4128K
代理商: MC68HC05C9ACB
MC68HC05C9A Rev. 4.0
General Release Specification
Low-Power Modes
NON-DISCLOSURE
AGREEMENT
REQUIRED
General Release Specification — MC68HC05C9A
Section 6. Low-Power Modes
6.1 Contents
6.2 Introduction
This section describes the low-power modes.
6.3 Stop Mode
The STOP instruction places the MCU in its lowest-power consumption
mode. In stop mode, the internal oscillator is turned off, halting all
internal processing, including timer operation.
During the stop mode, the TCR bits are altered to remove any pending
timer interrupt request and to disable any further timer interrupts. The
timer prescaler is cleared. The I bit in the CCR is cleared to enable
external interrupts. All other registers and memory remain unaltered. All
input/output lines remain unchanged. The processor can be brought out
of the stop mode only by an external interrupt or reset. See Figure 6-1.
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Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
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