TMS320DM355 datasheet(32/153 Pages) TI

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2.4.12 Clock Interface

TMS320DM355

Digital Media System-on-Chip (DMSoC)

SPRS463 – SEPTEMBER 2007

Table 2-17. SPI Terminal Functions (continued)

TERMINAL

TYPE(1)

OTHER(2)(3) DESCRIPTION

NAME

NO.

SPI1_SDI

SPI1: Data in or

GIO009

A13

I/O/Z

VDD

SPI1: Chip select

SPI1_SDENA[1]

GIO: GIO[09]

SPI1_SDO

SPI1: Data out

E12

I/O/Z

VDD

GIO008

GIO: GIO[008]

Standard CCD Analog Front End (AFE): 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 Analog Front End (AFE): 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

GIO: GIO[099]

Standard CCD Analog Front End (AFE): Raw[12]

•

YCC 16-bit: time multiplexed between chroma. CB/CR[04]

CIN4/

•

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

GIO098/

I/O/Z

time multiplexed between luma and chroma of the upper channel.

SPI2_SDI/

VDD_VIN

Y/CB/CR[04]

SPI2_SDENA[1]

SPI: SPI2 Data in

GIO: GIO[0998]

Standard CCD Analog Front End (AFE): Not used

•

YCC 16-bit: time multiplexed between chroma. CB/CR[06]

CIN6/

•

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

GIO100/

I/O/Z

time multiplexed between luma and chroma of the upper channel.

VDD_VIN

SPI2_SDO/

Y/CB/CR[06]

SPI: SPI2 Data out

GIO: GIO[100]

The provides interface with the system clocks.

Table 2-18. Clocks Terminal Functions

TERMINAL

TYPE(1)

OTHER(2)(3)

DESCRIPTION

NAME

NO.

CLKOUT1

CLKOUT: Output Clock 1

D12

I/O/Z

VDD

/ GIO018

GIO: GIO[018]

CLKOUT2

CLKOUT: Output Clock 2

A11

I/O/Z

VDD

/ GIO017

GIO: GIO[017]

CLKOUT3

CLKOUT: Output Clock 3

C11

I/O/Z

VDD

/ GIO016

GIO: GIO[016]

MXI1

VDD

Crystal input for system oscillator (24 MHz or 36 MHz)

Output for system oscillator (24 MHz or 36 MHz). When the MX02 is not used,

MXO1

VDD

the MX02 signal can be left open.

Crystal input for video oscillator (27 MHz) Optional, use only if 27MHz derived

from MXI1 and PLL does not provide sufficient performance for Video DAC.

MXI2

VDD

When the MX12 is not used and powered down, the MXI2 signal should be left

as a No Connect

(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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