TUSB8040A datasheet(23/39 Pages) TI1

23 / 39 page

TUSB8020A, TUSB8040A

www.ti.com

SLLSEA7B – MAY 2012 – REVISED AUGUST 2012

3.4.3

Vendor ID MSB Register

Table 3-6. Register Offset 2h

Bit No.

Reset State

Table 3-7. Bit Descriptions – Vendor ID MSB Register

Bit

Field Name

Access

Description

Vendor ID MSB. Most significant byte of the unique vendor ID assigned

by the USB-IF; the default value of this register is 04h representing the

7:0

vendorIdMsb

MSB of the TI Vendor ID 0451h. The value may be over-written to

indicate a customer Vendor ID.

3.4.4

Product ID LSB Register

Table 3-8. Register Offset 3h

Bit No.

Reset State

Table 3-9. Bit Descriptions – Vendor ID LSB Register

Bit

Field Name

Access

Description

Product ID LSB. Least significant byte of the product ID assigned by

Texas Instruments; the default value of this register is 41h for the

TUSB8040A and 21h for the TUSB8020A representing the LSB of the

product ID assigned by Texas Instruments. The value of this register will

7:0

productIdLsb

be reported as configured for the SuperSpeed USB Device descriptor.

The USB 2.0 Device descriptor will report the value in this register with

bit [1] toggled. This ensures that the USB drivers load properly for both

hubs. The value may be over-written to indicate a customer product ID.

3.4.5

Product ID MSB Register

Table 3-10. Register Offset 4h

Bit No.

Reset State

Table 3-11. Bit Descriptions – Vendor ID MSB Register

Bit

Field Name

Access

Description

Product ID MSB. Most significant byte of the product ID assigned by

Texas Instruments; the default value of this register is 80h representing

7:0

productIdMsb

the MSB of the product ID assigned by Texas Instruments. The value

may be over-written to indicate a customer product ID.

FUNCTIONAL DESCRIPTION

Submit Documentation Feedback

Product Folder Links: TUSB8020A TUSB8040A

TUSB8040A Datasheet(PDF) 23 Page - Texas Instruments

TUSB8040A Datasheet(HTML) 23 Page - Texas Instruments

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39

Datasheet Download

Link URL