参数资料
型号: SAX-XC878CM-13FFI5V
厂商: INFINEON TECHNOLOGIES AG
元件分类: 微控制器/微处理器
英文描述: 8-BIT, FLASH, 24 MHz, RISC MICROCONTROLLER, PQFP64
封装: PLASTIC, TQFP-64
文件页数: 127/141页
文件大小: 2385K
代理商: SAX-XC878CM-13FFI5V
XC878CLM
Functional Description
Data Sheet
79
V1.1, 2009-08
3.9
Power Saving Modes
The power saving modes of the XC878 provide flexible power consumption through a
combination of techniques, including:
Stopping the CPU clock
Stopping the clocks of individual system components
Reducing clock speed of some peripheral components
Power-down of the entire system with fast restart capability
After a reset, the active mode (normal operating mode) is selected by default (see
Figure 22) and the system runs in the main system clock frequency. From active mode,
different power saving modes can be selected by software. They are:
Idle mode
Slow-down mode
Power-down mode
Figure 22
Transition between Power Saving Modes
POWER-DOWN
IDLE
ACTIVE
SLOW-DOWN
set PD
bit
set PD
bit
set IDLE
bit
set IDLE
bit
set SD
bit
clear SD
bit
any interrupt
& SD=0
EXINT0/RXD pin
& SD=0
EXINT0/RXD pin
& SD=1
any interrupt
& SD=1
相关PDF资料
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