USB5534B datasheet(56/73 Pages) MICROCHIP

56 / 73 page

USB5534B

DS00001681C-page 56

 2012 - 2015 Microchip Technology Inc.

5.6.45

USB PORT 4 VARISENSE REGISTER

5.6.46

USB3 PORT 4 LINK STATE REGISTER

TABLE 5-62:

USB PORT 4 VARISENSE REGISTER

PHY_P4_SENSE

(0X70CC)

USB Port 4 Varisense Register

Bit

Name

R/W

Description

7:3

Reserved

2:0

HS_SQ_TUNE[2:0]

R/W

Squelch Tune

3’b000: Nominal 100mV Trip Point

3’b001: Decrease by 12.5mV

3’b010: Decrease by 25mV

3’b011: Decrease by 37.5mV

3’b100: Decrease by 50mV

3’b101: Decrease by 62.5mV

3’b110: Increase by 25mV

3’b111: Increase by 12.5mV

TABLE 5-63:

USB3 PORT 4 LINK STATE REGISTER

SS_P4_STATE

(0X71C0)

USB3 Port 4 Link State

Bit

Name

R/W

Description

7:4

LINK_STATE

Refer to Table 5-64, "USB 3.0 Link States" for more details.

Reserved

2:0

LINK_SUB_STATE

Refer to Table 5-64, "USB 3.0 Link States" for more details.

TABLE 5-64:

USB 3.0 LINK STATES

NUM

Link State

00h

01h

02h

03h

04h

SIS.Disabled

05h

RX.Detect

06h

SS.Inactive

07h

Polling

08h

Recovery

09h

Hot Reset

0Ah

Compliance

0Bh

Loopback

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