参数资料
型号: RX-4571SA
元件分类: 时钟/数据恢复及定时提取
英文描述: 0 TIMER(S), REAL TIME CLOCK, PDSO14
封装: ROHS COMPLIANT, SOP-14
文件页数: 26/76页
文件大小: 1924K
代理商: RX-4571SA
USB 2.0 Hi-Speed Hub Controller
Datasheet
Revision 1.1 (04-26-10)
32
SMSC USB251x
DATASHEET
behaviors provide battery charging even when the hub is not enumerated and protect the hub from
sustained short circuit conditions. If the short circuit condition persists when the hub is plugged into a
host system the user is notified that a port has an over-current condition. Otherwise the PRTPWR is
turned on by the host system and the port operates normally.
7.3
Battery Charging Configuration
Configuration of ports to support battery charging is done through a strap option on the corresponding
ports PRTPWR[x] / BC_EN[x] pin. see Chapter 5, Pin Descriptions, or through EEPROM or SMBus
configuration load.
7.3.1
Battery Charging enabled via EEPROM or SMBus
Register memory map location 0xD0 is allocated for battery charging support. The "Battery Charging"
register at location 0xD0 starting from Bit 1 enables battery charging for each downstream port when
asserted. Bit 1 represents port 1 and so on. Each port with battery charging enabled asserts the
corresponding PRTPWR[x:0] pin.
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相关代理商/技术参数
参数描述
RX-4571SAB 制造商:Epson Toyocom Corporation 功能描述:Cut Tape
RX-4574LC 制造商:EPSONTOYOCOM 制造商全称:Epson ToYoCom 功能描述:SERIAL-INTERFACE REAL TIME CLOCK MODULE