LM3S9997_15 Datasheet, PDF(1239/1337 Page) Texas Instruments – Stellaris LM3S9997 Microcontroller

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LM3S9997_15 Datasheet, PDF (1239/1337 Pages) Texas Instruments – Stellaris LM3S9997 Microcontroller

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StellarisÂ® LM3S9997 Microcontroller

Table 24-9. Signals by Function, Except for GPIO (continued)

Function

Pin Name Pin Number Pin Type Buffer Typea

Description

USB0DM

C11

I/O

Analog Bidirectional differential data pin (D- per USB

specification) for USB0.

USB0DP

C12

I/O

Analog Bidirectional differential data pin (D+ per USB

specification) for USB0.

USB0EPEN

K1

O

TTL

Optionally used in Host mode to control an external

M1

power source to supply power to the USB bus.

L6

A11

D10

USB

USB0ID

E12

I

Analog This signal senses the state of the USB ID signal.

The USB PHY enables an integrated pull-up, and

an external element (USB connector) indicates the

initial state of the USB controller (pulled down is

the A side of the cable and pulled up is the B side).

USB0PFLT

L2

I

TTL

Optionally used in Host mode by an external power

M2

source to indicate an error state by that power

M6

source.

E11

B11

B10

B6

USB0RBIAS

B12

O

Analog 9.1-kÎ© resistor (1% precision) used internally for

USB analog circuitry.

USB0VBUS

D12

I/O

Analog This signal is used during the session request

protocol. This signal allows the USB PHY to both

sense the voltage level of VBUS, and pull up VBUS

momentarily during VBUS pulsing.

a. The TTL designation indicates the pin has TTL-compatible voltage levels.

24.2.4 GPIO Pins and Alternate Functions

Table 24-10. GPIO Pins and Alternate Functions

IO

Pin

Analog

Function

1

2

Digital Function (GPIOPCTL PMCx Bit Field Encoding)a

3

4

5

6

7

8

9

10

11

PA0 L3

-

U0Rx

-

-

-

-

-

- I2C1SCL U1Rx

-

-

PA1 M3

-

U0Tx

-

-

-

-

-

- I2C1SDA U1Tx

-

-

PA2 M4

- SSI0Clk -

-

PWM4

-

-

-

- I2S0RXSD -

-

PA3 L4

- SSI0Fss -

-

PWM5

-

-

-

- I2S0RXMCLK -

-

PA4 L5

- SSI0Rx -

-

- CAN0Rx -

-

- I2S0TXSCK -

-

PA5 M5

- SSI0Tx -

-

- CAN0Tx -

-

- I2S0TXWS -

-

PA6 L6

- I2C1SCL CCP1

-

PWM0 PWM4 CAN0Rx - USB0EPEN U1CTS

-

-

PA7 M6

- I2C1SDA CCP4

-

PWM1 PWM5 CAN0Tx CCP3 USB0PFLT U1DCD

-

-

PB0 E12 USB0ID CCP0 PWM2

-

-

U1Rx

-

-

-

-

-

-

PB1 D12 USB0VBUS CCP2 PWM3

-

CCP1 U1Tx

-

-

-

-

-

-

PB2 A11

- I2C0SCL IDX0

-

CCP3 CCP0

-

- USB0EPEN -

-

-

PB3 E11

- I2C0SDA Fault0 - Fault3 -

-

- USB0PFLT -

-

-

PB4 A6 AIN10

-

-

-

U2Rx CAN0Rx IDX0 U1Rx

-

-

-

-

C0-

July 03, 2014

Texas Instruments-Production Data

1239

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