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USB3813 数据表(PDF) 48 Page - SMSC Corporation |
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USB3813 数据表(HTML) 48 Page - SMSC Corporation |
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48 / 68 page ![]() USB 2.0 Hi-Speed 3-Port Hub Controller Optimized for Portable Applications Datasheet Revision 1.0 (06-17-13) 48 SMSC USB3813 DATASHEET 7.3.2 Run Time SMBus Page Register The following run time SMBus page register is located at 0xFF and must be programmed to allow the SOC to page through different pages of the register space. Table 7.18 SMBus Page Register SMBUS_PAGE (0xFF(I2C) - RESET= 0x00) SMBUS PAGE REGISTER BIT NAME R/W DESCRIPTION 7:5 PAGE_SEL R/W From the I2C side, this field allows the I2C to select the accessible address space: 000 = Select registers in the 3000 space (0x30e2 - 0x30ee) 010 = Select registers in the 3100 space (0x318b,0x318e) 110 = Select register in the 6100 space (0x6100,0x6101,0x6102) 5:0 Reserved R Reserved. Note: Software must never write a ‘1’ to these bits |
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