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USB2513 数据表(PDF) 19 Page - SMSC Corporation |
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USB2513 数据表(HTML) 19 Page - SMSC Corporation |
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19 / 48 page  USB 2.0 High-Speed 3-Port Hub Controller Datasheet SMSC USB2513 19 Revision 1.98 (11-19-07) DATASHEET 4.3 EEPROM Interface The SMSC Hub can be configured via a 2-wire (I2C) EEPROM (256x8). (Please see Table 3.1 for specific details on how to enable configuration via an I2C EEPROM). The Internal state-machine will (when configured for EEPROM support) read the external EEPROM for configuration data. The hub will then “attach” to the upstream USB host. Note: The Hub does not have the capacity to write, or “Program,” an external EEPROM. The Hub only has the capability to read external EEPROMs. The external eeprom will be read (even if it is blank or non-populated), and the hub will be “configured” with the values that are read. Please see Internal Register Set (Common to EEPROM and SMBus) for a list of data fields available. 4.3.1 Internal Register Set (Common to EEPROM and SMBus) Table 4.2 Internal Default, EEPROM and SMBus Register Memory Map REG ADDR R/W REGISTER NAME ABBR INTERNAL DEFAULT ROM SMBUS AND EEPROM POR VALUES 00h R/W VID LSB VIDL 24h 0x00 01h R/W VID MSB VIDM 04h 0x00 02h R/W PID LSB PIDL 13h 0x00 03h R/W PID MSB PIDM 25h 0x00 04h R/W DID LSB DIDL 00h 0x00 05h R/W DID MSB DIDM 00h 0x00 06h R/W Config Data Byte 1 CFG1 9Bh 0x00 07h R/W Config Data Byte 2 CFG2 10h 0x00 08h R/W Config Data Byte 3 CFG3 00h 0x00 09h R/W Non-Removable Devices NRD 00h 0x00 0Ah R/W Port Disable (Self) PDS 00h 0x00 0Bh R/W Port Disable (Bus) PDB 00h 0x00 0Ch R/W Max Power (Self) MAXPS 01h 0x00 0Dh R/W Max Power (Bus) MAXPB 64h 0x00 0Eh R/W Hub Controller Max Current (Self) HCMCS 01h 0x00 0Fh R/W Hub Controller Max Current (Bus) HCMCB 64h 0x00 10h R/W Power-on Time PWRT 32h 0x00 11h R/W LANG_ID_H LANGIDH 00h 0x00 12h R/W LANG_ID_L LANGIDL 00h 0x00 13h R/W MFR_STR_LEN MFRSL 00h 0x00 14h R/W PRD_STR_LEN PRDSL 00h 0x00 |
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