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TUSB8040_1110 Datasheet(PDF) 22 Page - Texas Instruments |
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TUSB8040_1110 Datasheet(HTML) 22 Page - Texas Instruments |
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22 / 33 page  TUSB8040 SLLSE42F – SEPTEMBER 2010 – REVISED OCTOBER 2011 www.ti.com 3.3.10 Language ID LSB Register Table 3-20. Register Offset 20h BIT NO. 7 6 5 4 3 2 1 0 RESET STATE 0 0 0 0 1 0 0 1 Table 3-21. Bit Descriptions – Language ID LSB Register BIT FIELD NAME ACCESS DESCRIPTION Language ID least significant byte. This register contains the value returned in the LSB of the LANGID code in string index 0. The TUSB8040 only supports one language ID. The 7:0 langIdLsb RW default value of this register is 09h representing the LSB of the LangID 0409h indicating English United States. When customStrings is 1, this field may be over-written by the contents of an attached EEPROM or by an SMBus host. 3.3.11 Language ID MSB Register Table 3-22. Register Offset 21h BIT NO. 7 6 5 4 3 2 1 0 RESET STATE 0 0 0 0 0 1 0 0 Table 3-23. Bit Descriptions – Language ID LSB Register BIT FIELD NAME ACCESS DESCRIPTION Language ID most significant byte. This register contains the value returned in the MSB of the LANGID code in string index 0. The TUSB8040 only supports one language ID. The 7:0 langIdMsb RW default value of this register is 04h representing the MSB of the LangID 0409h indicating English United States. When customStrings is 1, this field may be over-written by the contents of an attached EEPROM or by an SMBus host. 3.3.12 Serial Number String Length Register Table 3-24. Register Offset 22h BIT NO. 7 6 5 4 3 2 1 0 RESET STATE 0 0 0 1 1 0 0 0 Table 3-25. Bit Descriptions – Serial Number String Length Register BIT FIELD NAME ACCESS DESCRIPTION 7:6 RSVD RO Reserved. Read only, returns 0 when read. Serial number string length. The string length in bytes for the serial number string. The default value is 0, indicating that a serial number string is not supported. The maximum string length is 32 bytes. This field may be over-written by the contents of an attached EEPROM or by an SMBus 5:0 serNumStringLen RW host. When the field is non-zero, a serial number string of serNumbStringLen bytes is returned at string index 1 from the data contained in the Serial Number String registers. If the string length in the Serial Number String Length Register is set to zero, the Manufacturing String Length and Product String Length must also be set to a length of zero. 22 FUNCTIONAL DESCRIPTION Copyright © 2010–2011, Texas Instruments Incorporated Submit Documentation Feedback Product Folder Link(s): TUSB8040 |
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