现代电子技术
現代電子技術
현대전자기술
MODERN ELECTRONICS TECHNIQUE
2013年
6期
157-160
,共4页
SoC 芯片%电源管理%“自适应”开机%“冬眠”功能
SoC 芯片%電源管理%“自適應”開機%“鼕眠”功能
SoC 심편%전원관리%“자괄응”개궤%“동면”공능
system?on?chip%power management%adaptive power?on%hibernation function
消费类电子产品主控 SoC 芯片内电源管理部分的设计对产品整机的功耗控制至关重要.为降低产品功耗和节省成本,设计了与任意片外开机使能电平相匹配的自适应开机接口使电子产品的开关机电路得到简化;并通过软硬件协作实现了冬眠功能,其特点是在待机状态下,SoC 上除电源管理单元和实时时钟外全部关电,而后能响应用户请求迅速恢复系统运行.
消費類電子產品主控 SoC 芯片內電源管理部分的設計對產品整機的功耗控製至關重要.為降低產品功耗和節省成本,設計瞭與任意片外開機使能電平相匹配的自適應開機接口使電子產品的開關機電路得到簡化;併通過軟硬件協作實現瞭鼕眠功能,其特點是在待機狀態下,SoC 上除電源管理單元和實時時鐘外全部關電,而後能響應用戶請求迅速恢複繫統運行.
소비류전자산품주공 SoC 심편내전원관리부분적설계대산품정궤적공모공제지관중요.위강저산품공모화절성성본,설계료여임의편외개궤사능전평상필배적자괄응개궤접구사전자산품적개관궤전로득도간화;병통과연경건협작실현료동면공능,기특점시재대궤상태하,SoC 상제전원관리단원화실시시종외전부관전,이후능향응용호청구신속회복계통운행.
The design of power management within master control SoC in the consumer electronic products is critical to power consumption control of whole products. In order to decrease power consumption and cost,an adaptive power?on interface which matchs with arbitrary out?of?chip power?on level was designed to make the on?off circuit of electronic products simple. The‘hi?bernation’function was achieved by hardware and software collaborations. Its characteristic is to switch off the power of all parts on SoC except the power management unit and real?time clock during standby state,and then make the system quickly restored in response to user’s command.
