TUSB1211

SLLSE80 – MARCH 2011

www.ti.com

Table 2-1. Terminal Functions

#

PIN

(1)

NAME

A/D

(2)

TYPE

(3)

LEVEL

(4)

DESCRIPTION

1

D5

NXT

D

O

ULPI NXT output signal

2

B1

DATA0

D

I/O

ULPI DATA input/output signal synchronized to CLOCK

3

A1

DATA1

D

I/O

ULPI DATA input/output signal synchronized to CLOCK

4

A2

DATA2

D

I/O

ULPI DATA input/output signal synchronized to CLOCK

5

A3

DATA3

D

I/O

ULPI DATA input/output signal synchronized to CLOCK

6

A5

DATA4

D

I/O

ULPI DATA input/output signal synchronized to CLOCK

7

A6

DATA5

D

I/O

ULPI DATA input/output signal synchronized to CLOCK

8

B6

DATA6

D

I/O

ULPI DATA input/output signal synchronized to CLOCK

Active-high chip select pin. When low the IC is in power down and ULPI bus is tri-stated. When high (and

9

B3

CS

D

I

VDDIO

CS_N pin iTie to VDDIO if unused.s low) normal operation.

10

E6

REG1V5

A

POWER

1.5 V internal LDO output. Connect to external filtering capacitor.

11

C6

DATA7

D

I/O

ULPI DATA input/output signal synchronized to CLOCK

REFCLK clock frequency configuration pin. Two frequencies are supported: 19.2MHz when 0, or 26MHz

12

B4

CFG

D

I

when 1.

13

D1

DP

A

I/O

DP pin of the USB connector

14

C1

DM

A

I/O

DM pin of the USB connector

15

E3

REG3V3

A

POWER

3.3 V internal LDO output. Connect to external filtering capacitor.

16

F3

VBAT

A

POWER

Input supply voltage or battery source. Nominally 3.3 V to 4.5 V

17

F4

VBUS

A

I/O

VBUS pin of the USB connector

18

D3

ID

A

I/O

Identification (ID) pin of the USB connector

ULPI 60MHz clock on which ULPI data is synchronized. 2 modes are possible:

19

A4

CLOCK

D

I/O

Input Mode: CLOCK defaults as an input (this is the default clock mode)

Output Mode: When an input clock is detected on REFCLK pin then CLOCK will change to an output

Active low chip reset pin. Minimum pulse width 100 µs. When low all digital logic (except 32kHz logic

required for power-up sequencing and charger detection state-machine) including registers are reset to

20

C4

RESET_N

D

I

their default values. ULPI bus is in “ULPI Synchronous mode power-up PLL OFF” state as described in

Table14-1. When high normal USB operation.

21

D6

STP

D

I

ULPI STP input signal

22

E5

DIR

D

O

ULPI DIR output signal

23

B5

VDDIO

A

I

External 1.8V supply input for digital I/Os. Connect to external filtering capacitor.

24

B2

VDDIO

A

I

External 1.8V supply input for digital I/Os. Connect to external filtering capacitor.

25

C5

GND

A

GROUND

GND

Ground

26

D2

GND

A

GROUND

GND

Ground

27

E4

GND

A

GROUND

GND

Ground

Reference clock input.

28

F5

REFCLK

A

I

Input reference clock frequency must be indicated by CFG pin.

Two frequencies are supported: 19.2MHz (when CFG = 0), and 26MHz (when CFG = 1).

HS USB SOF (Start-Of-Frame) output clock. (feature controlled by SOF_EN bit, disabled and output logic

29

F6

SOF

D

O

low by default.). HS USB SOF packet rate is 8 kHz

30

C2

NC

Not connected

Active-low chip select pin. When high the IC is in power down and ULPI bus is tri-stated. When low (and

31

C3

CS_N

D

I

CS pin is high) normal operation. Tie to GND if unused.

Active low input pin used to enable Battery Charging Detection in Dead Battery Charger Detection mode.

32

E1

CHRG_EN_N

D

I

This pin is ignored in ACTIVE mode. Connect to GND to activate. Connect to VBAT when charger

detection not required

VBUS fault detector input used as EXTERNALVBUSINDICATOR in TUSB1211. The link must enable

VBUS fault detection via the USEEXTERNALVBUSINDICATOR register bit, and the polarity must be set

33

E2

FAULT

D

I

via the INDICATORCOMPLEMENT register bit. INDICATORPASSTHRU bit can be used to qualify

FAULT with the internal vbusvalid comparator. Connect to GND if not used. This pin is 5V tolerant.

When connected to GND then CHRG_DET output pin is active low. When connected to VBAT then

34

F1

CHRG_POL

D

I

CHRG_DET output pin is active high.

(1)

Pin = Package Pin coordinate of Figure 2-1

(2)

A/D: A = Analog pin, D = Digital pin

(3)

TYPE: I = Input pin type, O = Output pin type, I/O = Input/Output pin type, POWER = Power supply pin type,

GROUND = Ground type pin

(4)

LEVEL = Pin power supply level

8

Description

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