TUSB8042 Datasheet, PDF (16/55 Pages) Texas Instruments – Four-Port USB 3.1 Gen1 Hub

TUSB8042
SLLSET2 – AUGUST 2017
www.ti.com
8.3.3 One Time Programmable (OTP) Configuration
The TUSB8042 allows device configuration through one time programmable non-volatile memory (OTP). The
programming of the OTP is supported using vendor-defined USB device requests. For details using the OTP
features please contact your TI representative.
Table 4 provides a list features which may be configured using the OTP.
CONFIGURATION REGISTER
OFFSET
REG_01h
REG_02h
REG_03h
REG_04h
REG_07h
REG_07h
REG_07h
REG_07h
REG_08h
REG_0Ah
REG_0Ah
REG_0Bh
REG_0Bh
REG_0Bh
REG_0Bh
REG_25h
REG_26h
REG_F0h
Table 4. OTP Configurable Features
BIT FIELD
[7:0]
[7:0]
[7:0]
[7:0]
[0]
[1]
[2]
[3]
[3:0]
[3]
[4]
[0]
[1]
[2]
[3]
[4:0]
[3:0]
[3:1]
DESCRIPTION
Vendor ID LSB
Vendor ID MSB
Product ID LSB
Product ID MSB
Port removable configuration for downstream ports 1. OTP
configuration is inverse of rmbl[3:0], i.e. 1 = not removable, 0 =
removable.
Port removable configuration for downstream ports 2. OTP
configuration is inverse of rmbl[3:0], i.e. 1 = not removable, 0 =
removable.
Port removable configuration for downstream ports 3. OTP
configuration is inverse of rmbl[3:0], i.e. 1 = not removable, 0 =
removable.
Port removable configuration for downstream ports 4. OTP
configuration is inverse of rmbl[3:0], i.e. 1 = not removable, 0 =
removable.
Port used Configured register.
Enable Device Attach Detection..
High-current divider mode enable.
USB 2.0 port polarity configuration for downstream ports 1.
USB 2.0 port polarity configuration for downstream ports 2.
USB 2.0 port polarity configuration for downstream ports 3.
USB 2.0 port polarity configuration for downstream ports 4.
Device Configuration Register 3
USB2.0 Only Port Register
USB power switch power-on delay.
16
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