USB5533B datasheet(50/71 Pages) MICROCHIP

50 / 71 page

USB5533B

DS00001680C-page 50

 2012 - 2015 Microchip Technology Inc.

5.6.30

USB UPSTREAM BOOST REGISTER

5.6.31

USB UPSTREAM VARISENSE REGISTER

5.6.32

USB3 UPSTREAM LINK STATE REGISTER

TABLE 5-47:

USB UPSTREAM BOOST REGISTER

HS_UP_BOOST

(0X60CA)

USB Upstream Boost Register

Bit

Name

R/W

Description

7:3

Reserved

R/W

Reserved

2:0

HS_BOOST

R/W

HS Output Current.

3’b000: Nominal

3’b001: Decrease by 5%

3’b010: Increase by 10%

3’b011: Increase by 5%

3’b100: Increase by 20%

3’b101: Increase by 15%

3’b110: Increase by 30%

3’b111: Increase by 25%

TABLE 5-48:

USB UPSTREAM VARISENSE REGISTER

PHY_UP_SENSE

(0X60CC)

USB Upstream 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 5-49:

USB3 UPSTREAM LINK STATE REGISTER

SS_UP_STATE

(0X61C0)

USB3 Upstream Link State

Bit

Name

R/W

Description

7:4

LINK_STATE

Refer to Table 5-59, "USB 3.0 Link States" for more details.

Reserved

2:0

LINK_SUB_STATE

Refer to Table 5-59, "USB 3.0 Link States" for more details.

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