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USB3613 数据表(PDF) 20 Page - Microchip Technology |
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USB3613 数据表(HTML) 20 Page - Microchip Technology |
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20 / 57 page ![]() USB 2.0 Hi-Speed 3-Port Hub Controller Optimized for Portable Applications Datasheet DS00001714A-page 20 2014 Microchip Technology Inc. Figure 5.1 Hub Operational Mode Flowchart External SPI ROM present? YES NO Run from Internal ROM Run From External SPI ROM REFCLK Present NO Load BC registers On RO YES REFCLK Present YES NO YES Dead Battery Bond Option Run BC Detect On RO NO (BC_INIT) (SW_INIT) (WAITREF) SMBus or I2C Present? SOC Done? Do SMBus or I2C Initialization NO (SOC_CFG) YES YES NO Combine OTP Config Data Config Load From Internal ROM SW Upstream BC detection (CHGDET) Hub Connect (Hub.Connect) (CONFIG) Normal operation (HW_INIT) |
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