TUSB1044 datasheet(41/67 Pages) TI1

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TUSB1044

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SLLSF47B – FEBRUARY 2018 – REVISED APRIL 2018

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7.6.1.7 DisplayPort_2 Register (Offset = 13h) [reset = 0h]

DisplayPort_2 is shown in Figure 29 and described in Table 18.

Return to Summary Table.

Figure 29. DisplayPort_2 Register

AUX_SNOOP_

DISABLE

RESERVED

AUX_SBU_OVR

DP3_DISABLE

DP2_DISABLE

DP1_DISABLE

DP0_DISABLE

R/W-0h

R-0h

R/W-0h

Table 18. DisplayPort_2 Register Field Descriptions

Bit

Field

Type

Reset

Description

AUX_SNOOP_DISABLE

R/W

Controls whether DP lanes are enabled based on AUX snooped

value or registers.

0h = AUX snoop enabled.

1h = AUX snoop disabled. DP lanes are controlled by registers.

RESERVED

Reserved

5-4

AUX_SBU_OVR

R/W

This field overrides the AUXP/N to SBU1/2 connect and disconnect

based on CTL1 and FLIP. Changing this field to 1b will allow traffic

to pass through AUX to SBU regardless of the state of CTLSEL1

and FLIPSEL register.

0h = AUX to SBU connection determined by CTLSEL1 and FLIPSEL

1h = AUXP -> SBU1 and AUXN -> SBU2

2h = AUXP -> SBU2 and AUXN -> SBU1

3h = AUX to SBU open.

DP3_DISABLE

R/W

When AUX_SNOOP_DISABLE = 1b, this field can be used to enable

or disable DP lane 3. When AUX_SNOOP_DISABLE = 0b, changes

to this field will have no effect on lane 3 functionality.

0h = DP Lane 3 enabled.

1h = DP Lane 3 disabled.

DP2_DISABLE

R/W

When AUX_SNOOP_DISABLE = 1b, this field can be used to enable

or disable DP lane 2. When AUX_SNOOP_DISABLE = 0b, changes

to this field will have no effect on lane 2 functionality.

0h = DP Lane 2 enabled.

1h = DP Lane 2 disabled.

DP1_DISABLE

R/W

When AUX_SNOOP_DISABLE = 1b, this field can be used to enable

or disable DP lane 1. When AUX_SNOOP_DISABLE = 0b, changes

to this field will have no effect on lane 1 functionality.

0h = DP Lane 1 enabled.

1h = DP Lane 1 disabled.

DP0_DISABLE

R/W

When AUX_SNOOP_DISABLE = 1b, this field can be used to enable

or disable DP lane 0. When AUX_SNOOP_DISABLE = 0b, changes

to this field will have no effect on lane 0 functionality.

0h = DP Lane 0 enabled.

1h = DP Lane 0 disabled.

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