Datasheet
TUSB8040A
www.ti.com
SLLSEA7F –MAY 2012–REVISED SEPTEMBER 2013
3.4.12 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 0 0 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
5:0 serNumStringLen RW may be over-written by the contents of an attached EEPROM or by an
SMBus 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.
3.4.13 Manufacturer String Length Register
Table 3-26. Register Offset 23h
Bit No. 7 6 5 4 3 2 1 0
Reset State 0 0 0 0 0 0 0 0
Table 3-27. Bit Descriptions – Manufacturer String Length Register
Bit Field Name Access Description
7 RSVD RO Reserved. Read only, returns 0 when read.
Manufacturer string length. The string length in bytes for the
manufacturer string. The default value is 0, indicating that a manufacturer
string is not provided. The maximum string length is 64 bytes. When the
6:0 mfgStringLen RW
field is non-zero, a manufacturer string of mfgStringLen bytes is returned
at string index 3 from the data contained in the Manufacturer String
registers.
3.4.14 Product String Length Register
Table 3-28. Register Offset 24h
Bit No. 7 6 5 4 3 2 1 0
Reset State 0 0 0 0 0 0 0 0
Table 3-29. Bit Descriptions – Product String Length Register
Bit Field Name Access Description
7 RSVD RO Reserved. Read only, returns 0 when read.
Product string length. The string length in bytes for the product string.
The default value is 0, indicating that a product string is not provided.
6:0 prodStringLen RW The maximum string length is 64 bytes. When the field is non-zero, a
product string of prodStringLen bytes is returned at string index 2 from
the data contained in the Product String registers.
Copyright © 2012–2013, Texas Instruments Incorporated FUNCTIONAL DESCRIPTION 23
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