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TUSB2E221 Datasheet(PDF) 43 Page - Texas Instruments |
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TUSB2E221 Datasheet(HTML) 43 Page - Texas Instruments |
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43 / 65 page  Table 9-17. U_HS_TX_PRE_EMPHASIS_P1 Register Field Descriptions (continued) Bit Field Type Reset Default from OTP (Y/N) Description 3 U_HS_TX_PE_ENABL E_P1 RH/W 1h Y USB HS TX Pre-emphasis Enable Default through OTP PE is disabled during chirp J (VCHIRPJ) or chirp K (VCHIRPK) 0h = Disabled (hw default) 1h = Enabled 2-0 U_HS_TX_PRE_EMPH ASIS_P1 RH/W 1h Y U2_TXPE USB HS TX Pre-emphasis (0.5dB-4.0dB) Default through OTP PE is disabled during chirp J (VCHIRPJ) or chirp K (VCHIRPK) 0h = 0.5dB (typical) (hw default) 1h = 0.9dB (typical) 2h = 1.2dB (typical) 3h = 1.7dB (typical) 4h = 2.1dB (typical) 5h = 2.5dB (typical) 6h = 3.2dB (typical) 7h = 4.0dB (typical) 9.1.16 U_RX_ADJUST_PORT1 Register (Offset = 72h) [Reset = 92h] U_RX_ADJUST_PORT1 is shown in Table 9-18. Return to the Summary Table. Hardware default value can be overridden through factory programmable OTP for this register. Table 9-18. U_RX_ADJUST_PORT1 Register Field Descriptions Bit Field Type Reset Default from OTP (Y/N) Description 7-6 gpio_ds_config RH/W 2h Y GPIOx and INT open drain output drive strength selection This is intended to be set through I2C. (The pin can be set through RAP only if repeater 1 is enabled) Default through OTP 0h = ~1mA (typical) 1h = ~2mA (typical) 2h = ~4mA (typical) (hw default) 3h = ~8mA (typical) 5-4 RESERVED RH/W 1h Reserved 3 RESERVED RH/W 0h Reserved 2-0 U_EQ_P1 RH/W 2h Y EQ_UHS Adjustment USB RX Equalizer Control (0-3.35dB) Default through OTP 0h = 0.06dB (typical) (hw default) 1h = 0.58dB (typical) 2h = 1.09dB (typical) 3h = 1.56dB (typical) 4h = 2.26dB (typical) 5h = 2.67dB (typical) 6h = 3.03dB (typical) 7h = 3.35dB (typical) 9.1.17 U_DISCONNECT_SQUELCH_PORT1 Register (Offset = 73h) [Reset = 74h] U_DISCONNECT_SQUELCH_PORT1 is shown in Table 9-19. Return to the Summary Table. www.ti.com TUSB2E221 SNLS757B – JUNE 2024 – REVISED NOVEMBER 2024 Copyright © 2024 Texas Instruments Incorporated Submit Document Feedback 43 Product Folder Links: TUSB2E221 |
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