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TUSB1146 датащи(PDF) 32 Page - Texas Instruments

номер детали TUSB1146
подробное описание детали  TUSB1146 USB Type-C™ DisplayPort™ Alt Mode 10-Gbps Linear Redriver Crosspoint Switch
PDF  68 Pages
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производитель  TI2 [Texas Instruments]
домашняя страница  https://www.ti.com
Logo TI2 - Texas Instruments

TUSB1146 датащи(HTML) 32 Page - Texas Instruments

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USB-Only
USB +
2-Lane DP
Disabled
4-lane DP
Power-On
Reset
Exit Alt
Mode
Exit Alt Mode
or Unattached
state
Enter Alt
Mode
Enter Alt
Mode
Exit Alt Mode
or Unattached
state
32
TUSB1146
SLLSFB2 – APRIL 2020
www.ti.com
Product Folder Links: TUSB1146
Submit Documentation Feedback
Copyright © 2020, Texas Instruments Incorporated
8.5 Programming
8.5.1 Transition between Modes
The TUSB1146 allows for transitioning between any mode (USB-only to 4DP, 4DP to USB+2DP, and so forth).
The USB-C standard requires transitioning to the USB Safe State before entering to or exiting from an Alternate
Mode. The USB Safe State defines an electrical state for the SBU1/2 and SSTX/SSRX for DFPs, UFPs, and
Active Cables when transitioning between USB and an Alternate Mode. Therefore before entering to or exiting
from four lane DP mode it is recommended to first enter the Disable state (CTLSEL = 2'b00 or (CTL0 pin = 0 and
CTL1 pin = 0)).
Figure 28. Recommended Mode Transitions
8.5.2 Pseudocode Examples
8.5.2.1 Fast AEQ with linear redriver mode
// (address, data)
// Initial power-on configuration.
(0x0A, 0x11), // EQ_OVERRIDE and USB3.1 default.
(0x1C, 0x81), // Fast AEQ enable
(0x10, 0x55), // DP lanes 0 and 1 EQ
(0x11, 0x55), // DP lanes 2 and 2 EQ
(0x1D, 0x10), // FASTAEQ_LIMITS to 80mV
(0x1E, 0x55), // USB-C Rx1/Rx2 Long channel EQ.
(0x20, 0x00), // USB-C Rx1/Rx2 Short channel EQ.



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