TMS320DM355

Digital Media System-on-Chip (DMSoC)

www.ti.com

SPRS463A –SEPTEMBER 2007 –REVISED SEPTEMBER 2007

Table 2-7. Digital Video Terminal Functions

TERMINAL

NAME

NO.

YOUT7-R7

C3

YOUT6-R6

A4

YOUT5-R5

B4

YOUT4-R4

B3

YOUT3-R3

B2

YOUT2-G7

A3

YOUT1-G6

A2

YOUT0-G5

B1

COUT7-

 

G4/GIO081

C2

/PWM0

 

COUT6-G3

 

/GIO080

D2

/PWM1

 

COUT5-G2

 

/ GIO079 /

C1

PWM2A /

 

RTO0

 

COUT4-B7 /

 

GIO078 /

D3

PWM2B /

 

RTO1

 

COUT3-B6 /

 

GIO077 /

E3

PWM2C /

 

RTO2

 

COUT2-B5 /

 

GIO076 /

E4

PWM2D /

 

RTO3

 

COUT1-B4 /

 

GIO075 /

F3

PWM3A

 

COUT0-B3 /

 

GIO074 /

F4

PWM3B

 

HSYNC /

F5

GIO073

 

VSYNC /

G5

GIO072

 

FIELD /

 

GIO070 /

H4

R2 /

 

PWM3C

 

EXTCLK /

 

GIO069 /

G3

B2 /

 

PWM3D

 

VCLK /

H3

GIO068

 

TYPE (1)

I/O/Z

I/O/Z

I/O/Z

I/O/Z

I/O/Z

I/O/Z

I/O/Z

I/O/Z

I/O/Z

I/O/Z

I/O/Z

I/O/Z

I/O/Z

I/O/Z

I/O/Z

I/O/Z

I/O/Z

I/O/Z

I/O/Z

I/O/Z

I/O/Z

OTHER (2) (3)

VDD_VOUT

VDD_VOUT

VDD_VOUT

VDD_VOUT

VDD_VOUT

VDD_VOUT

VDD_VOUT

VDD_VOUT

VDD_VOUT

VDD_VOUT

VDD_VOUT

VDD_VOUT

VDD_VOUT

VDD_VOUT

VDD_VOUT

VDD_VOUT

PD

VDD_VOUT

PD

VDD_VOUT

VDD_VOUT

PD

VDD_VOUT

VDD_VOUT

DESCRIPTION (4)

Digital Video Out: VENC settings determine function

Digital Video Out: VENC settings determine function

Digital Video Out: VENC settings determine function

Digital Video Out: VENC settings determine function

Digital Video Out: VENC settings determine function

Digital Video Out: VENC settings determine function

Digital Video Out: VENC settings determine function

Digital Video Out: VENC settings determine function

Digital Video Out: VENC settings determine function GIO: GIO[081] PWM0

Digital Video Out: VENC settings determine function GIO: GIO[080] PWM1

Digital Video Out: VENC settings determine function GIO: GIO[079] PWM2A RTO0

Digital Video Out: VENC settings determine function GIO: GIO[078] PWM2B RTO1

Digital Video Out: VENC settings determine function GIO: GIO[077] PWM2C RTO2

Digital Video Out: VENC settings determine function GIO: GIO[076] PWM2D RTO3

Digital Video Out: VENC settings determine function

GIO: GIO[075]

PWM3A

Digital Video Out: VENC settings determine function

GIO: GIO[074]

PWM3B

Video Encoder: Horizontal Sync

GIO: GIO[073]

Video Encoder: Vertical Sync

GIO: GIO[072]

Video Encoder: Field identifier for interlaced display formats

GIO: GIO[070]

Digital Video Out: R2

PWM3C

Video Encoder: External clock input, used if clock rates > 27 MHz are needed, e.g.

74.25MHz for HDTV digital output GIO: GIO[069]

Digital Video Out: B2 PWM3D

Video Encoder: Video Output Clock

GIO: GIO[068]

PRODUCT PREVIEW

(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 kΩ resistor should be used.)

(4)To reduce EMI and reflections, depending on the trace length, approximately 22 Ω to 50 Ω damping resistors are recommend on the following outputs placed near the DM355: YOUT(0-7),COUT(0-7), HSYNC,VSYNC,LCD_OE,FIELD,EXTCLK,VCLK. The trace lengths should be minimized.

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Device Overview

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Texas Instruments TMS320DM355 warranty Digital Video Terminal Functions, Terminal Name

TMS320DM355 specifications

The Texas Instruments TMS320DM355 is a versatile digital signal processor designed to support a wide array of multimedia applications, specifically in the realms of digital video and audio processing. As part of the TMS320 family of digital signal processors, the DM355 brings a blend of computational power, energy efficiency, and integrated features that make it highly effective for tasks such as video encoding, decoding, and general signal processing.

One of the standout features of the DM355 is its advanced DaVinci architecture, which is specifically optimized for multimedia tasks. This architecture integrates both DSP and application processing functionalities. The dual-core architecture includes a high-performance DSP core that specializes in real-time signal processing alongside an ARM926EJ-S RISC microprocessor, facilitating the execution of complex algorithms and control tasks.

The DM355 offers robust multimedia processing capabilities with support for several video formats, including MPEG-2, MPEG-4, H.264, and JPEG. This enables developers to create powerful video applications for a variety of devices, from industrial systems to consumer electronics. Its processing capabilities extend to audio processing, allowing it to efficiently handle audio codecs and enhance audio quality in applications ranging from IP cameras to set-top boxes.

In terms of connectivity, the TMS320DM355 supports various interfaces including USB 2.0, Ethernet, and various serial interfaces like UART, SPI, and I2C. This wide range of connectivity options ensures that the DM355 can easily interface with different peripherals and network components, making it a suitable choice for networked applications.

Energy efficiency is another significant advantage of the DM355. With a focus on low power consumption, the device is designed to operate effectively in battery-powered and heat-sensitive environments. Its low thermal design power allows for extended operational life and reduced thermal management requirements, making it ideal for portable devices.

Furthermore, the DM355 is supported by a comprehensive software development framework, including the TI Code Composer Studio and a range of middleware tools, which streamline application development and speed up time to market. Its rich ecosystem enhances its usability across different applications, ensuring that developers can leverage the full potential of the hardware.

In summary, the Texas Instruments TMS320DM355 stands out as a powerful yet cost-effective DSP solution, combining advanced multimedia processing capabilities, robust connectivity options, and energy efficiency. Its unique architecture and extensive support resources make it a preferred choice for developers seeking to create innovative multimedia solutions.