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TUSB1046AI-DCI Datasheet(PDF) 19 Page - Texas Instruments

Part # TUSB1046AI-DCI
Description  TUSB1046A-DCI USB Type-C™ DisplayPort™ ALT Mode 10-Gbps Linear Redriver Crosspoint Switch
PDF  48 Pages
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Manufacturer  TI2 [Texas Instruments]
Direct Link  https://www.ti.com
Logo TI2 - Texas Instruments

TUSB1046AI-DCI Datasheet(HTML) 19 Page - Texas Instruments

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TUSB1046A-DCI
www.ti.com
SLLSF13B – JUNE 2017 – REVISED MAY 2019
Product Folder Links: TUSB1046A-DCI
Submit Documentation Feedback
Copyright © 2017–2019, Texas Instruments Incorporated
8.4.2 Device Configuration In I2C Mode
The TUSB1046A-DCI is in I2C mode when I2C_EN is not equal to “0”. The same configurations defined in GPIO
mode are also available in I2C mode. The TUSB1046A-DCI USB3.1 and DisplayPort configuration is controlled
based on Table 5. The AUXp or AUXn to SBU1 or SBU2 mapping control is based on Table 6.
Table 5. I2C Configuration Control
REGISTERS
TUSB1046A-DCI CONFIGURATION
VESA DisplayPort ALT MODE
DFP_D CONFIGURATION
CTLSEL1
CTLSEL0
FLIPSEL
0
0
0
Power Down
—
0
0
1
Power Down
—
0
1
0
One Port USB 3.1 - No Flip
—
0
1
1
One Port USB 3.1 – With Flip
—
1
0
0
4 Lane DP - No Flip
C and E
1
0
1
4 Lane DP – With Flip
C and E
1
1
0
One Port USB 3.1 + 2 Lane DP- No Flip
D and F
1
1
1
One Port USB 3.1 + 2 Lane DP– With Flip
D and F
Table 6. I2C AUXp or AUXn to SBU1 or SBU2 Mapping
REGISTERS
MAPPING
AUX_SBU_OVR
1
AUX_SBU_OVR0
CTLSEL1
FLIPSEL
0
0
1
0
AUXp
→ SBU1
AUXn
→ SBU2
0
0
1
1
AUXp
→ SBU2
AUXn
→ SBU1
0
0
0
X
Open
0
1
X
X
AUXp
→ SBU1
AUXn
→ SBU2
1
0
X
X
AUXp
→ SBU2
AUXn
→ SBU1
1
1
X
X
Open
8.4.3 DisplayPort Mode
The TUSB1046A-DCI supports up to four DisplayPort lanes at datarates up to 8.1 Gbps. TUSB1046A-DCI can
be enabled for DisplayPort through GPIO control or through I2C register control. When I2C_EN is ‘0’, DisplayPort
is controlled based on Table 2. When not in GPIO mode, enable of DisplayPort functionality is controlled through
I2C registers.



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