TMS320DM335 datasheet(22/156 Pages) TI

22 / 156 page

2.4.5

GPIO

TMS320DM335

Digital Media System-on-Chip (DMSoC)

SPRS528 – JULY 2008

www.ti.com

The General Purpose I/O signals provide generic I/O to external devices. Most of the GIO signals are

multiplexed with other functions.

Table 2-11. GPIO Terminal Functions

TERMINAL

TYPE(1)

OTHER(2)(3)

DESCRIPTION

NAME

NO.

GIO: GIO[000] Active low during MMC/SD boot (can be used as MMC/SD power

GIO000

C16

I/O/Z

VDD

control).

Can be used as external clock input for Timer 3.

GIO001

E14

I/O/Z

VDD

GIO: GIO[001] Can be used as external clock input for Timer 3.

GIO002

F15

I/O/Z

VDD

GIO: GIO[002] Can be used as external clock input for Timer 3.

GIO003

G15

I/O/Z

VDD

GIO: GIO[003] Can be used as external clock input for Timer 3.

GIO004

B17

I/O/Z

VDD

GIO: GIO[004]

GIO005

D15

I/O/Z

VDD

GIO: GIO[005]

GIO006

B18

I/O/Z

VDD

GIO: GIO[006]

GIO007 /

GIO: GIO[007]

SPI0_SDE

C17

I/O/Z

VDD

SPI0: Chip Select 1

NA[1]

SPI1_SD

SPI1: Data Out

O /

E12

I/O/Z

VDD

GIO: GIO[008]

GIO008

SPI1_SDI

/ GIO009 /

A13

I/O/Z

VDD

SPI1: Data In -OR- SPI1: Chip Select 1 GIO: GIO[009]

SPI1_SDE

NA[1]

SPI1_SCL

SPI1: Clock GIO:

K /

C13

I/O/Z

VDD

GIO[010]

GIO010

SPI1_SDE

SPI1: Chip Select 0

NA[0] /

E13

I/O/Z

VDD

GIO: GIO[011]

GIO011

UART1_T

UART1: Transmit Data

XD /

R17

I/O/Z

VDD

GIO: GIO[012]

GIO012

UART1_R

UART1: Receive Data

XD /

R15

I/O/Z

VDD

GIO: GIO[013]

GIO013

I2C_SCL /

I2C: Serial Clock GIO:

R14

I/O/Z

VDD

GIO014

GIO[014]

I2C_SDA /

I2C: Serial Data

R13

I/O/Z

VDD

GIO015

GIO: GIO[015]

CLKOUT3

CLKOUT: Output Clock 3

C11

I/O/Z

VDD

/ GIO016

GIO: GIO[016]

CLKOUT2

CLKOUT: Output Clock 2

A11

I/O/Z

VDD

/ GIO017

GIO: GIO[017]

CLKOUT1

CLKOUT: Output Clock 1

D12

I/O/Z

VDD

/ GIO018

GIO: GIO[018]

MMCSD1

_DATA0 /

MMCSD1: DATA0

GIO019 /

A18

I/O/Z

VDD

GIO: GIO[019]

UART2_T

UART2: Transmit Data

(1)

I = Input, O = Output, Z = High impedance, S = Supply voltage, GND = Ground, A = Analog signal.

(2)

Specifies the operating I/O supply voltage for each signal. See Section 5.3, Power Supplies for more detail.

(3)

PD = pull-down, PU = pull-up. (To pull up a signal to the opposite supply rail, a 1 k

Ω resistor should be used.)

Device Overview

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