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TUSB546AI-DCI Datasheet(PDF) 19 Page - Texas Instruments

Part # TUSB546AI-DCI
Description  USB Type-C DP ALT Mode Linear Redriver Crosspoint Switch
PDF  49 Pages
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Manufacturer  TI1 [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI1 - Texas Instruments

TUSB546AI-DCI Datasheet(HTML) 19 Page - Texas Instruments

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TUSB546A-DCI
www.ti.com
SLLSF14 – JUNE 2017
Product Folder Links: TUSB546A-DCI
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Copyright © 2017, Texas Instruments Incorporated
8.4.2 Device Configuration In I2C Mode
The TUSB546A-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 TUSB546A-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
TUSB546A-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
CTLSEL1
FLIPSEL
00
1
0
AUXp
→ SBU1
AUXn
→ SBU2
00
1
1
AUXp
→ SBU2
AUXn
→ SBU1
00
1
X
Open
01
X
X
AUXp
→ SBU1
AUXn
→ SBU2
10
X
X
AUXp
→ SBU2
AUXn
→ SBU1
11
X
X
Open
8.4.3 DisplayPort Mode
The TUSB546A-DCI supports up to four DisplayPort lanes at datarates up to 8.1 Gbps. TUSB546A-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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