參數(shù)資料
型號: MC68HC705C9ACFB
廠商: FREESCALE SEMICONDUCTOR INC
元件分類: 微控制器/微處理器
英文描述: 8-BIT, OTPROM, 2.1 MHz, MICROCONTROLLER, PQFP44
封裝: QFP-44
文件頁數(shù): 59/118頁
文件大小: 750K
代理商: MC68HC705C9ACFB
MC68HC05C9A Advance Information Data Sheet, Rev. 4.1
Freescale Semiconductor
45
Chapter 6
Low-Power Modes
6.1 Introduction
This section describes the low-power modes.
6.2 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. Stop Recovery Timing Diagram
3FFE
3FFF
INTERNAL
ADDRESS
BUS
INTERNAL
CLOCK
IRQ
(3)
IRQ
(2)
RESET
OSC1
(1)
t
ILCH
4064 t
cyc
RESET OR INTERRUPT
VECTOR FETCH
t
LIH
t
RL
Notes:
1. Represents the internal gating of the OSC1 pin
2. IRQ pin edge-sensitive mask option
3. IRQ pin level and edge-sensitive mask option
相關(guān)PDF資料
PDF描述
MC68HC705C9ACB 8-BIT, OTPROM, 2.1 MHz, MICROCONTROLLER, PDIP42
MC68HC705C9ACFNE 8-BIT, OTPROM, 2.1 MHz, MICROCONTROLLER, PQCC44
MC68HC705C9AFB 8-BIT, OTPROM, 2.1 MHz, MICROCONTROLLER, PQFP44
MC68HC705C9AVFN 8-BIT, OTPROM, 2.1 MHz, MICROCONTROLLER, PQCC44
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