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TUSB564 Datasheet(PDF) 20 Page - Texas Instruments

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Part # TUSB564
Description  USB TYPE-C DP Alt Mode 8.1 Gbps Sink-Side Linear Redriver Crosspoint Switch
PDF  45 Pages
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Manufacturer  TI1 [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI1 - Texas Instruments

TUSB564 Datasheet(HTML) 20 Page - Texas Instruments

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TUSB564
SLLSF29A – OCTOBER 2017 – REVISED OCTOBER 2017
www.ti.com
Product Folder Links: TUSB564
Submit Documentation Feedback
Copyright © 2017, Texas Instruments Incorporated
8.4.2 Device Configuration In I2C Mode
The TUSB564 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 TUSB564 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
CONFIGURATION
VESA DisplayPort ALT MODE
UFP_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
1
0
1
4 Lane DP – With Flip
C
1
1
0
One Port USB 3.1 + 2 Lane DP- No Flip
D
1
1
1
One Port USB 3.1 + 2 Lane DP– With Flip
D
Table 6. I2C AUXp or AUXn to SBU1 or SBU2 Mapping
REGISTERS
MAPPING
AUX_SBU_OVR
CTLSEL1
FLIPSEL
00
1
0
SBU1
→ AUXn
SBU2
→ AUXp
00
1
1
SBU2
→ AUXn
SBU1
→ AUXp
00
0
X
Open
01
X
X
SBU1
→ AUXn
SBU2
→ AUXp
10
X
X
SBU2
→ AUXn
SBU1
→ AUXp
11
X
X
Open
8.4.3 DisplayPort Mode
The TUSB564 supports up to four DisplayPort lanes at datarates up to 8.1 Gbps. TUSB564 can be enabled for
DisplayPort through GPIO control pin CTL1 or through I2C register CTLSEL1. When I2C_EN is ‘0’, DisplayPort is
controlled based on Table 2. When not in GPIO mode, DisplayPort functionality is controlled through I2C
registers. Data transfer through the DisplayPort lanes is further controlled by the HPDIN pin. DisplayPort needs
to be enabled using CTL1 pin or CTLSEL1 register and also HPDIN needs to be pulled high for the DisplayPort
data trasfer to be enabled through the DisplayPort lanes.



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