USB2534 datasheet(13/62 Pages) SMSC

13 / 62 page

USB 2.0 Hi-Speed 4-Port Hub Controller

Datasheet

SMSC USB2534

Revision 1.0 (06-17-13)

DATASHEET

Downstream

USB D+

(Port 3)

USBDN3_DP

AIO

Downstream USB Port 3 D+ data signal.

Port 3 D+

Disable

Configuration

Strap

PRT_DIS_P3

This strap is used in conjunction with

PRT_DIS_M3 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 3.4 for more information on

configuration straps.

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 3.4 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 3.4 for more information on

configuration straps.

Table 3.1 Pin Descriptions (continued)

NUM PINS

NAME

SYMBOL

BUFFER

TYPE

DESCRIPTION

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