USB251xB/xBi
5.1.1 REGISTER 00H: VENDOR ID (LSB)
Bit Number
7:0
Bit Name
VID_LSB
Description
Least Significant Byte of the Vendor ID: a 16-bit value that uniquely identifies
the Vendor of the user device (assigned by USB-Interface Forum). Set this
field using either the SMBus or I2C EEPROM interface options.
5.1.2 REGISTER 01H: VENDOR ID (MSB)
Bit Number
7:0
Bit Name
VID_MSB
Description
Most Significant Byte of the Vendor ID: a 16-bit value that uniquely identifies
the Vendor of the user device (assigned by USB-Interface Forum). Set this field
using either the SMBus or I2C EEPROM interface options.
5.1.3 REGISTER 02H: PRODUCT ID (LSB)
Bit Number
7:0
Bit Name
PID_LSB
Description
Least Significant Byte of the Product ID: a 16-bit value that uniquely identifies
the Product ID of the user device. Set this field using either the SMBus or I2C
EEPROM interface options.
5.1.4 REGISTER 03H: PRODUCT ID (MSB)
Bit Number
7:0
Bit Name
PID_MSB
Description
Most Significant Byte of the Product ID: a 16-bit value that uniquely identifies
the Product ID of the user device. Set this field using either the SMBus or I2C
EEPROM interface options.
5.1.5 REGISTER 04H: DEVICE ID (LSB)
Bit Number
7:0
Bit Name
DID_LSB
Description
Least Significant Byte of the Device ID: a 16-bit device release number in
BCD format (assigned by OEM). Set this field using either the SMBus or I2C
EEPROM interface options.
5.1.6 REGISTER 05H: DEVICE ID (MSB)
Bit Number
7:0
Bit Name
DID_MSB
Description
Most Significant Byte of the Device ID: a 16-bit device release number in BCD
format (assigned by OEM). Set this field using either the SMBus or I2C
EEPROM interface options.
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DS00001692C-page 21