TMS320DM355CZCEA13 datasheet(33/163 Pages) TI1

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TMS320DM355

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SPRS463G – SEPTEMBER 2007 – REVISED JUNE 2010

2.13 I

2C Interface

The DM355 includes an I2C two-wire serial interface for control of external peripherals. This interface is

multiplexed with GIO signals.

Table 2-16. I2C Terminal Functions

TERMINAL

TYPE(1)

OTHER(2) (3)

DESCRIPTION

NAME

NO.

I2C_SDA/

I2C: Serial data

R13

I/O/Z

VDD

GIO015

GIO: GIO015

I2C_SCL/

I2C: Serial clock

R14

I/O/Z

VDD

GIO014

GIO: GIO014

(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.)

2.14 Serial Interface

The DM355 includes three independent serial ports. These interfaces are multiplexed with GIO and other

signals.

Table 2-17. SPI Terminal Functions

TERMINAL

OTHER(2)

TYPE(1)

DESCRIPTION

(3)

NAME

NO.

SPI0_SCLK

C12

I/O/Z

VDD

SPI0: Clock

SPI0_SDENA[0]/

SPI0: Chip select 0

B12

I/O/Z

VDD

GIO103

GIO: GIO[103]

GIO007

GIO: GIO[007]

C17

I/O/Z

VDD

SPI0_SDENA[1]

SPI0: Chip select 1

SPI0_SDI/

SPI0: Data in

A12

I/O/Z

VDD

GIO102

GIO: GIO[102]

SPI0_SDO

B11

I/O/Z

VDD

SPI0: Data out

SPI1_SCLK/

SPI1: Clock

C13

I/O/Z

VDD

GIO010

GIO: GIO[010]

SPI1: Chip select 0

SPI1_SDENA[0]/

E13

I/O/Z

VDD

GIO: GIO[011] - Active low during MMC/SD boot (can be used as

GIO011

MMC/SD power control)

SPI1_SDI/

SPI1: Data in or

GIO009/

A13

I/O/Z

VDD

SPI1: Chip select 1

SPI1_SDENA[1]

GIO: GIO[09]

SPI1_SDO/

SPI1: Data out

E12

I/O/Z

VDD

GIO008

GIO: GIO[008]

Standard CCD/CMOS input: Not used

•

YCC 16-bit: time multiplexed between chroma. CB/CR[07]

CIN7/

•

YCC 8-bit (which allows for two simultaneous decoder inputs), it is

GIO101/

I/O/Z

time multiplexed between luma and chroma of the upper channel.

VDD_VIN

SPI2_SCLK

Y/CB/CR[07]

SPI: SPI2 clock

GIO: GIO[101]

Standard CCD/CMOS input: Raw[13]

•

YCC 16-bit: time multiplexed between chroma. CB/CR[05]

CIN5/

•

YCC 8-bit (which allows for two simultaneous decoder inputs), it is

GIO099/

I/O/Z

time multiplexed between luma and chroma of the upper channel.

VDD_VIN

SPI2_SDENA[0]

Y/CB/CR[07]

SPI: SPI2 chip select 0

GIO: GIO[099]

(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.)

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