USB4624 datasheet(14/58 Pages) MICROCHIP

14 / 58 page

USB 2.0 HSIC Hi-Speed 4-Port Hub Controller

Datasheet

DS00001717A-page 14

 2014 Microchip Technology Inc.

Downstream

USB D-

(Port 3)

USBDN3_DM

AIO

Downstream USB Port 3 D- data signal.

Port 3 D-

Disable

Configuration

Strap

PRT_DIS_M3

This strap is used in conjunction with

PRT_DIS_P3 to disable USB Port 3.

0 = Port 3 D- Enabled

1 = Port 3 D- Disabled

Note:

Both PRT_DIS_P3 and PRT_DIS_M3

must be tied to VDD33 at reset to

disable the associated port.

See Note 3.3 for more information on

configuration straps.

Downstream

USB D+

(Port 4)

USBDN4_DP

AIO

Downstream USB Port 4 D+ data signal.

Port 4 D+

Disable

Configuration

Strap

PRT_DIS_P4

This strap is used in conjunction with

PRT_DIS_M4 to disable USB Port 4.

0 = Port 4 D+ Enabled

1 = Port 4 D+ Disabled

Note:

Both PRT_DIS_P4 and PRT_DIS_M4

must be tied to VDD33 at reset to

disable the associated port.

See Note 3.3 for more information on

configuration straps.

Downstream

USB D-

(Port 4)

USBDN4_DM

AIO

Downstream USB Port 4 D- data signal.

Port 4 D-

Disable

Configuration

Strap

PRT_DIS_M4

This strap is used in conjunction with

PRT_DIS_P4 to disable USB Port 4.

0 = Port 4 D- Enabled

1 = Port 4 D- Disabled

Note:

Both PRT_DIS_P4 and PRT_DIS_M4

must be tied to VDD33 at reset to

disable the associated port.

See Note 3.3 for more information on

configuration straps.

I2C/SMBUS INTERFACE

I2C Serial

Clock Input

SCL

I_SMB

I2C serial clock input

SMBus Clock

SMBCLK

I_SMB

SMBus serial clock input

Table 3.1 Pin Descriptions (continued)

NUM PINS

NAME

SYMBOL

BUFFER

TYPE

DESCRIPTION

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