USB3500 datasheet(12/46 Pages) SMSC

12 / 46 page

Hi-Speed USB Host, Device or OTG PHY With UTMI+ Interface

Datasheet

Revision 1.0 (04-04-05)

SMSC USB3500

DATASHEET

I/O,

Analog

N/A

D- pin of the USB cable.

VSS

Ground

N/A

PHY ground.

VDD3.3

N/A

3.3V PHY Supply.

XCVRSEL[1]

Input

N/A

Transceiver Select. These signals select between

the FS and HS transceivers:

Transceiver select.

00: HS

01: FS

10: LS

11: LS data, FS rise/fall times

CHRGVBUS

Input

High

Charge VBUS through a resistor to VDD3.3.

0: do not charge VBUS

1: charge VBUS

RXACTIVE

Output

High

Receive Active. Indicates that the receive state

machine has detected Start of Packet and is active.

OPMODE[1]

Input

N/A

Operational Mode. These signals select between

the various operational modes:

[1]

[0]

Description

0: Normal Operation

1: Non-driving (all terminations removed)

2: Disable bit stuffing and NRZI encoding

3: Reserved

OPMODE[0]

Input

N/A

ID_DIG

Output

High

ID Digital. Indicates the state of the ID pin.

0: connected plug is a mini-A

1: connected plug is a mini-B

IDPULLUP

Input

High

ID Pull-up. Enables sampling of the analog ID line.

Disabling the ID line sampler will reduce PHY power

consumption.

0: Disable sampling of ID line.

1: Enable sampling of ID line.

VSS

Ground

N/A

PHY ground.

CLKOUT

Output,

CMOS

N/A

60MHz reference clock output. All UTMI+ signals are

driven synchronous to this clock.

VSS

Ground

N/A

PHY ground.

LINESTATE[1]

Output

N/A

Line State. These signals reflect the current state of

the USB data bus in FS mode. Bit [0] reflects the

state of DP and bit [1] reflects the state of DM. When

the device is suspended or resuming from a

suspended state, the signals are combinatorial.

Otherwise, the signals are synchronized to CLKOUT.

[1]

[0]

Description

0: SEO

1: J State

2: K State

3: SE1

LINESTATE[0]

Output

N/A

VDD1.8

N/A

1.8V regulator output for digital circuitry on chip.

Place a 0.1uF capacitor near this pin and connect

the capacitor from this pin to ground. Connect pin 27

to pin 49.

Table 3.1 USB3500 Pin Definitions (continued)

NAME

DIRECTION,

TYPE

ACTIVE

LEVEL

DESCRIPTION

USB3500 Datasheet(PDF) 12 Page - SMSC Corporation

USB3500 Datasheet(HTML) 12 Page - SMSC Corporation

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46

Datasheet Download

Link URL