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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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TUSB1046AI-DCI датащи(PDF) 17 Page - Texas Instruments |
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TUSB1046AI-DCI датащи(HTML) 17 Page - Texas Instruments |
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17 / 48 page  17 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 NOTE All four-level inputs are latched on rising edge of internal reset. After tcfg_hd, the internal pull-up and pull-down resistors will be isolated in order to save power. 8.3.4 Receiver Linear Equalization The purpose of receiver equalization is to compensate for channel insertion loss and inter-symbol interference in the system before the input of the TUSB1046A-DCI. The receiver overcomes these losses by attenuating the low frequency components of the signals with respect to the high frequency components. The proper gain setting should be selected to match the channel insertion loss before the input of the TUSB1046A-DCI receivers. Two 4- level inputs pins enable up to 16 possible equalization settings. USB3.1 upstream path, USB3.1 downstream path, and DisplayPort each have their own two 4-level inputs. The TUSB1046A-DCI also provides the flexibility of adjusting settings through I2C registers. 8.4 Device Functional Modes 8.4.1 Device Configuration in GPIO Mode The TUSB1046A-DCI is in GPIO configuration when I2C_EN = “0”. The TUSB1046A-DCI supports the following configurations: USB 3.1 only, 2 DisplayPort lanes + USB 3.1, or 4 DisplayPort lanes (no USB 3.1). The CTL1 pin controls whether DisplayPort is enabled. The combination of CTL1 and CTL0 selects between USB 3.1 only, 2 lanes of DisplayPort, or 4-lanes of DisplayPort as detailed in Table 2. The AUXp or AUXn to SBU1 or SBU2 mapping is controlled based on Table 3. After power-up (VCC from 0 V to 3.3 V), the TUSB1046A-DCI defaults to USB3.1 mode. The USB PD controller upon detecting no device attached to Type-C port or USB3.1 operation not required by attached device must take TUSB1046A-DCI out of USB3.1 mode by transitioning the CTL0 pin from L to H and back to L. Table 2. GPIO Configuration Control CTL1 PIN CTL0 PIN FLIP PIN TUSB1046A-DCI CONFIGURATION VESA DisplayPort ALT MODE DFP_D CONFIGURATION L L L Power Down — L L H Power Down — L H L One Port USB 3.1 - No Flip — L H H One Port USB 3.1 – With Flip — H L L 4 Lane DP - No Flip C and E H L H 4 Lane DP – With Flip C and E H H L One Port USB 3.1 + 2 Lane DP- No Flip D and F H H H One Port USB 3.1 + 2 Lane DP– With Flip D and F Table 3. GPIO AUXp or AUXn to SBU1 or SBU2 Mapping CTL1 PIN FLIP PIN MAPPING H L AUXp → SBU1 AUXn → SBU2 H H AUXp → SBU2 AUXn → SBU1 L > 2 ms X Open Table 4 Details the TUSB1046A-DCI’s mux routing. This table is valid for both I2C and GPIO configuration modes. |
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