TUSB1104 datasheet(28/55 Pages) TI

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7.5.1.4 Fast AEQ with Limited Redriver Mode

// (address, data)

// Initial power-on configuration.

(0x0A, 0x91), // Limited redriver, EQ_OVERRIDE and USB 3.2

(0x0B, 0x6F), // SSRX1 limited. Preshoot and de-emphasis.

(0x0C, 0x6C), // SSRX2 limited. Preshoot and de-emphasis.

(0x32, 0xC0), // VOD control

(0x1C, 0x81), // Fast AEQ enable.

(0x1D, 0x10), // Over EQ adjustment

(0x1E, 0x77), // USB connector CRx1/CRx2 long channel EQ setting

(0x20, 0x11), // USB connector CRx1/CRx2 short channel EQ setting

(0x21, 0x55), // SSTX1 and SSTX2 receiver EQ

// Controls when selecting between normal and flip orientation.

If (USBonly_normal) // USB-C connected and normal orientation.

{ (0x0A,0x91); }

Else if (USBonly_flip) // USB-C connected and Flip orientation.

{ (0x0A, 0x95); }

Else // Nothing connected to USB-C connector. Disable USB 3.2.

{ (0x0A, 0x90); }

7.5.1.5 Full AEQ with Linear Redriver Mode

// (address, data)

// Initial power-on configuration.

(0x0A, 0x11), // Linear redriver, EQ_OVERRIDE and USB 3.2

(0x32, 0xC0), // VOD control

(0x1C, 0x85), // Full AEQ enable. Set upper EQ limit to 0x8.

(0x1D, 0x10), // Over EQ adjustment

(0x20, 0x11), // USB connector CRx1/CRx2 EQ. Not used in Full AEQ.

(0x21, 0x55), // SSTX1 and SSTX2 receiver EQ

// Controls when selecting between normal and flip orientation.

If (USBonly_normal) // USB-C connected and normal orientation.

{ (0x0A,0x11); }

Else if (USBonly_flip) // USB-C connected and Flip orientation.

{ (0x0A, 0x15); }

Else // Nothing connected to Type-C. Disable USB 3.2.

{ (0x0A, 0x10); }

TUSB1104

SLLSFL1 – APRIL 2022

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TUSB1104 Datasheet(PDF) 28 Page - Texas Instruments