Wolfson WM8320处理器电源管理方案
Wolfson 公司的WM8320是综合的处理器电源管理子系统,提供高性价比的灵活的单片解决方案,特别适合于低功率手提应用. WM8320支持ARM9, ARM11和ARM Cortex-A系列处理器,具有电源管理,系统控制以及其它用于多功能模拟测量的ADC,128位伪随机ID,带叫醒的安全RTC和系统LED输出指示电源状态和故障状态等功能,主要用在手机,智能手机,电子书,PMP,移动互联网设备(MID),电子游戏,上网本和机顶盒.本文介绍了WM8320的主要特性,方框图以及在手提媒体播放器(PMP), 手提导航设备, 数码相机, 数码相框, VOIP电话, 电子阅读器和婴儿监视器的应用框图以及WM8320评估板详细电路图.
Processor Power Management Subsystem
WM8320 is an integrated power-management subsystem which provides a cost-effective, flexible, single-chip solution for power management, specifically targeted at the requirements of a range of low-power portable applications.
WM8320 is specifically designed to operate as a system PMIC supporting the ARM9™, ARM11™ and ARM Cortex-A™ series processors at the heart of a range of low-power
applications.
The start-up behaviour and configuration is fully programmable in an integrated OTP non-volatile memory. This highly flexible solution helps reduce time-to-market, as changing application requirements can be very easily accommodated in the OTP contents. An external EEPROM can be used to configure the WM8320 for development purposes.
..
