TMS320DM335 datasheet(32/158 Pages) TI

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2.4.12 Clock Interface

TMS320DM335

Digital Media System-on-Chip (DMSoC)

SPRS528A – JULY 2008 – REVISED AUGUST 2008

www.ti.com

Table 2-17. SPI Terminal Functions (continued)

TERMINAL

TYPE(1)

OTHER(2)(3) DESCRIPTION

NAME

NO.

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]

Standard CCD/CMOS input: 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 -OR- SPI2 Chip select 1

GIO: GIO[0998]

Standard CCD/CMOS input: 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 DM335 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 MXI2 is not used and powered down, the MXI2 signal should be left

as a No Connect

Output for video oscillator (27 MHz) Optional, use only if 27MHz derived from

MXI1 and PLL does not provide sufficient performance for Video DAC When the

MXO2

VDD

MXO2 is not used and powered down, the MXO2 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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