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TUSB8040A1 Datasheet(PDF) 27 Page - Texas Instruments |
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TUSB8040A1 Datasheet(HTML) 27 Page - Texas Instruments |
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27 / 38 page  TUSB8040A1 www.ti.com SLLSEE5A – FEBRUARY 2013 – REVISED MAY 2013 3.4.17 Reserved Register Table 3-34. Register Offset 2Fh Bit No. 7 6 5 4 3 2 1 0 Reset State 0 0 0 0 0 0 0 0 Table 3-35. Bit Descriptions – Reserved Register Bit Field Name Access Description 7:1 RSVD RO Reserved. Read only, returns 0 when read. Reserved. When the TUSB8040A1 is in I2C mode, the TUSB8040A1 loads this bit from the contents of the EEPROM. When the TUSB8040A1 0 RSVD RW is in SMBUS mode, the values may be over-written by an SMBus host. This bit shall be programmed to 0 for normal operation. 3.4.18 Serial Number Registers Table 3-36. Register Offset 30h-4Fh Bit No. 7 6 5 4 3 2 1 0 Reset State X X x x x x x x Table 3-37. Bit Descriptions – Serial Number Registers Bit Field Name Access Description Serial Number byte N. The serial number returned in the Serial Number string descriptor at string index 1. The default value of these registers is calculated from the Die ID fields in the fuseRom. When customSernum is 7:0 serialNumber[n] RW 1, these registers may be over-written by EEPROM contents or by an SMBus host. The serial number will be returned in USB 2.0 descriptor of the TUSB8040A1. 3.4.19 Manufacturer String Registers Table 3-38. Register Offset 50h-8Fh Bit No. 7 6 5 4 3 2 1 0 Reset State 0 0 0 0 0 0 0 0 Table 3-39. Bit Descriptions – Manufacturer String Registers Bit Field Name Access Description Manufacturer string byte N. These registers provide the string values returned for string index 3 when mfgStringLen is greater than 0. The number of bytes returned in the string is equal to mfgStringLen. The 7:0 mfgStringByte[n] RW programmed data should be in UNICODE UTF-16LE encodings as defined by The Unicode Standard, Worldwide Character Encoding, Version 5.0. Copyright © 2013, Texas Instruments Incorporated FUNCTIONAL DESCRIPTION 27 Submit Documentation Feedback Product Folder Links: TUSB8040A1 |
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