TUSB2E11 datasheet(39/58 Pages) TI

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Table 10-11. E_RX_ADJUST_PORT1 Register Field Descriptions

Bit

Field

Type

Reset

Description

Reserved

RH/W

Reserved

6-4

E_SQUELCH_THRESHO

LD_P1

RH/W

0h = 104 mV (typical)

1h = 101 mV (typical)

2h = 98 mV (typical)

3h = 90 mV (typical)

4h = 81 mV (typical) (B0 OTP default)

5h = 73 mV (typical)

6h = 67 mV (typical) (B1 OTP default)

7h = 60 mV (typical)

3-0

E_EQ_P1

RH/W

0h = 0.34 dB (typical) (default)

1h = 0.71 dB (typical)

2h = 1.02 dB (typical)

3h = 1.36 dB (typical)

4h = 1.64 dB (typical)

5h = 1.94 dB (typical)

6h = 2.19 dB (typical)

7h = 2.45 dB (typical)

8h = 2.69 dB (typical)

9h = 2.93 dB (typical)

Ah = 3.13 dB (typical)

Bh = 3.35 dB (typical)

Ch = 3.53 dB (typical)

Dh = 3.72 dB (typical)

Eh = 3.89 dB (typical)

Fh = 4.07 dB (typical)

10.1.10 UART_PORT1 Register (Offset = 50h) [Reset = 02h]

UART_PORT1 is shown in Table 10-12.

Return to the Summary Table.

Table 10-12. UART_PORT1 Register Field Descriptions

Bit

Field

Type

Reset

Description

7-6

Reserved

R/W

Reserved

uart_cross_P1

R/W

Select whether plus and minus pins are crossed between USB 2.0

and eUSB2 during UART mode

0h = if UART mode is enabled, pair eD+ with D+ and eD- with D-

1h = if UART mode is enabled, pair eD+ with D- and eD- with D+

UART_use_bit1_P1

R/W

Select whether UART enable select is set by register bit 1 or not

0h = bit 1 ignored. UART mode enabled by GPIO0

1h = bit 1 (UART_en_by_reg_not_pin_P1) enabled

UART_dir_not_Carkit_P1

R/W

Set UART mode, direction, low for Carkit and high for opposite

0h = UART mode uses Carkit directions, D+ to eUSB2 and eD- to

USB 2.0

1h = UART mode directions are opposite of Carkit, D- to eUSB2 and

eD+ to USB 2.0

UART_en_by_reg_not_pin

_P1

R/W

Select whether Carkit UART mode is enabled by register or by

GPIO0 pin

0h = select GPIO0 pin to enable UART mode

1h = select UART_mode_en_P1 register to enable UART mode

UART_mode_en_P1

R/W

If GPIO0 is not selected to enable Carkit UART mode, this register

will enable it.

0h = disable UART mode between eUSB2 and USB 2.0 pins

1h = enable UART mode between eUSB2 and USB 2.0 pins

10.1.11 REV_ID Register (Offset = B0h) [Reset = 02h]

REV_ID is shown in Table 10-13.

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TUSB2E11

SLLSFI4A – NOVEMBER 2021 – REVISED JUNE 2022

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