TMS320DM355

Digital Media System-on-Chip (DMSoC)

www.ti.com

SPRS463A –SEPTEMBER 2007 –REVISED SEPTEMBER 2007

2.4.6Multi-Media Card/Secure Digital (MMC/SD) Interfaces

The DM355 includes two Multi-Media Card/Secure Digital card interfaces that are compatible with the MMC/SD and SDIO protocol.

Table 2-12. MMC/SD Terminal Functions

TERMINAL

NAME NO.

MMCSD0_

TYPE (1)

OTHER (2) (3)

DESCRIPTION

CLK

A15

I/O/Z

VDD

MMCSD0: Clock

MMCSD0_

CMD

C14

MMCSD0_

DATA0

B14

MMCSD0_

DATA1

D14

MMCSD0_

DATA2

B13

MMCSD0_

DATA3

A14

PRODUCT PREVIEW

MMCSD1_

CLK/ C15 GIO024

MMCSD1_

CMD/ A17 GIO023

MMCSD1_ DATA0/

GIO019/ A18 UART2_T

XD

MMCSD1_ DATA1/

GIO020/ B15 UART2_R

XD

MMCSD1_ DATA2/

GIO021/ A16 UART2_C

TS

MMCSD1_ DATA3/

GIO022/ B16 UART2_R

TS

I/O/Z

VDD

MMCSD0: Command

I/O/Z

VDD

MMCSD0: DATA0

I/O/Z

VDD

MMCSD0: DATA1

I/O/Z

VDD

MMCSD0: DATA2

I/O/Z

VDD

MMCSD0: DATA3

I/O/Z

VDD

MMCSD1: Clock

GIO: GIO[024]

I/O/Z

VDD

MMCSD1: Command

GIO: GIO[023]

 

 

MMCSD1: DATA0

I/O/Z

VDD

GIO: GIO[019]

 

 

UART2: Transmit data

 

 

MMCSD1: DATA1

I/O/Z

VDD

GIO: GIO[020]

 

 

UART2: Receive data

 

 

MMCSD1: DATA2

I/O/Z

VDD

GIO: GIO[021]

 

 

UART2: CTS

 

 

MMCSD1: DATA3

I/O/Z

VDD

GIO: GIO[022]

 

 

UART2: RTS

(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.)

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Texas Instruments TMS320DM355 warranty Multi-Media Card/Secure Digital MMC/SD Interfaces, MMC/SD Terminal Functions

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.