TUSB564 datasheet(28/50 Pages) TI1

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TUSB564

SLLSF29C – OCTOBER 2017 – REVISED FEBRUARY 2018

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Table 16. USB3.1 Control/Status Registers (0x20)

Bit

Field

Type

Reset

Description

7:4

EQ2_SEL

R/W/U

0000

Field selects EQ level for USB3.1 RX2 receiver. When

EQ_OVERRIDE = 1’b0, this field reflects the sampled state of

EQ[1:0] pins. When EQ_OVERRIDE = 1’b1, software can

change the EQ setting for USB3.1 RX2 receiver based on value

written to this field.

3:0

EQ1_SEL

R/W/U

0000

Field selects EQ level for USB3.1 RX1 receiver. When

EQ_OVERRIDE = 1’b0, this field reflects the sampled state of

EQ[1:0] pins. When EQ_OVERRIDE = 1’b1, software can

change the EQ setting for USB3.1 RX1 receiver based on value

written to this field.

8.6.7 USB3.1 Control/Status Registers (address = 0x21) [reset = 00000000]

Figure 24. USB3.1 Control/Status Registers (0x21)

Reserved

SSEQ_SEL

R/W/U

LEGEND: R/W = Read/Write; R = Read only; -n = value after reset

Table 17. USB3.1 Control/Status Registers (0x21)

Bit

Field

Type

Reset

Description

7:4

Reserved

0000

Reserved

3:0

SSEQ_SEL

R/W/U

0000

Field selects between 0 to 11 dB of EQ for USB3.1 SSTXP/N

receiver. When EQ_OVERRIDE = 1’b0, this field reflects the

sampled state of SSEQ[1:0] pins. When EQ_OVERRIDE = 1’b1,

software can change the EQ setting for USB3.1 SSTXP/N

receiver based on value written to this field.

8.6.8 USB3.1 Control/Status Registers (address = 0x22) [reset = 00000000]

Figure 25. USB3.1 Control/Status Registers (0x22)

CM_ACTIVE

LFPS_EQ

U2U3_LFPS_D

EBOUNCE

DISABLE_U2U

3_RXDET

DFP_RXDET_INTERVAL

USB3_COMPLIANCE_CTRL

R/U

R/W

LEGEND: R/W = Read/Write; R = Read only; -n = value after reset

Table 18. USB3.1 Control/Status Registers (0x22)

Bit

Field

Type

Reset

Description

CM_ACTIVE

R/U

0 –device not in USB 3.1 compliance mode. (Default)

1 –device in USB 3.1 compliance mode

LFPS_EQ

R/W

Controls whether settings of EQ based on EQ1_SEL, EQ2_SEL

and SSEQ_SEL applies to received LFPS signal.

0 – EQ set to zero when receiving LFPS (default)

1 – EQ set to EQ1_SEL, EQ2_SEL, and SSEQ_SEL when

receiving LFPS.

U2U3_LFPS_DEBOUNCE

R/W

0 – No debounce of LFPS before U2/U3 exit. (Default)

1 – 200us debounce of LFPS before U2/U3 exit.

DISABLE_U2U3_RXDET

R/W

0 – Rx.Detect in U2/U3 enabled. (Default)

1 – Rx.Detect in U2/U3 disabled.

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