TUSB1044AI datasheet(40/66 Pages) TI1

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Table 8-3. General_1 Register Field Descriptions (continued)

Bit

Field

Type

Reset

Description

SWAP_SEL

R/W

Set this field to perform a global direction swap on all the channels.

0h = Channel directions and EQ settings are in normal mode

1h = Reverse all channel directions and EQ settings for the input

ports.

EQ_OVERRIDE

R/W

Set this field to allow the software to use the EQ settings from

registers instead of values sampled from pins.

0h = EQ settings based on sampled state of EQ pins.

1h = EQ settings based on the programmed value of each of the EQ

registers.

HPDIN_OVERRIDE

R/W

Overrides the HPDIN pin state.

0h = HPD_IN based on HPD_IN pin.

1h = HPD_IN high.

FLIP_SEL

R/W

FLIPSEL

0h = Normal Orientation

1h = Flip orientation.

1-0

CTLSEL_1:0

R/W

Controls the DP and USB modes.

0h = Disabled. All RX and TX for USB3 and DisplayPort are

disabled.

1h = USB3.2 only enabled.

2h = Four Lanes of DisplayPort enabled.

3h = USB3.2 and Two DisplayPort Lanes.

8.1.2 General_2 Register (Offset = Bh) [Reset = 00h]

General_2 is shown in Table 8-4.

Return to the Summary Table.

Table 8-4. General_2 Register Field Descriptions

Bit

Field

Type

Reset

Description

7-4

RESERVED

Reserved

3-0

CH_SWAP_SEL

R/W

Swaps direction (TX to RX and RX to TX) and EQ settings of

individual channels. Channels are numbered from 0 to 3. One bit

per lane.

0h = Channel and EQ settings normal.

1h = Reverse channel direction and EQ setting.

8.1.3 General_3 Register (Offset = Ch) [Reset = 00h]

General_3 is shown in Table 8-5.

Return to the Summary Table.

Table 8-5. General_3 Register Field Descriptions

Bit

Field

Type

Reset

Description

RESERVED

Reserved

VOD_DCGAIN_OVERRID

R/W

Set this field to allow the software to use the VOD linearity range and

DC gain settings from registers instead of value sampled from pins

0h = VOD linearity and DC gain settings based on sampled CFG[2:1]

pins. 1b = EQ settings based on programmed value of each VOD

linearity and DC Gain registers.

TUSB1044A

SLLSG07 – MARCH 2025

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