th(EM_CLKH- EM_AIV)
tw(EM_CLKH) tw(EM_CLKL)

TMS320DM355

Digital Media System-on-Chip (DMSoC)

www.ti.com

SPRS463A –SEPTEMBER 2007 –REVISED SEPTEMBER 2007

Table 5-14. Switching Characteristics Over Recommended Operating Conditions for Asynchronous

Memory Cycles for AEMIF Module (see Figure 5-14and Figure 5-15) (continued)

NO.

6tsu(EMBAV-EMOEL)

7th(EMOEH-EMBAIV)

8tsu(EMBAV-EMOEL)

9th(EMOEH-EMAIV)

10 tw(EMOEL)

11td(EMWAITH-

EMOEH)

PARAMETER

Output setup time, EM_BA[1:0] valid to EM_OE low

Output hold time, EM_OE high to EM_BA[1:0] invalid

Output setup time, EM_A[13:0] valid to EM_OE low

Output hold time, EM_OE high to EM_A[13:0] invalid

EM_OE active low width (EW = 0)

EM_OE active low width (EW = 1)

Delay time from EM_WAIT deasserted to EM_OE high

DM355

MINNom

(RS)*E

(RH)*E

(RS)*E

(RH)*E

(RST)*E

(RST+(EWC*16))*E

4E

UNI

MAX T

ns

ns

ns

ns

ns ns

ns

READS (OneNAND Synchronous Burst Read)

PRODUCT PREVIEW

32 fc(EM_CLK)

33 tc(EM_CLK)

34tsu(EM_ADVV- EM_CLKH)

35 th(EM_CLKH- EM_ADVIV)

36tsu(EM_AV- EM_CLKH)

37

38

39

Frequency, EM_CLK

Cycle time, EM_CLK

Output setup time, EM_ADV valid before EM_CLK high

Output hold time, EM_CLK high to EM_ADV invalid

Output setup time, EM_A[13:0]/EM_BA[1] valid before EM_CLK high

Output hold time, EM_CLK high to

EM_A[13:0]/EM_BA[1] invalid

Pulse duration, EM_CLK high

Pulse duration, EM_CLK low

WRITES

1

15

5

6

5

6

tc(EM_CLK)/3 tc(EM_CLK)/3

66MH z

1000 ns ns

ns

ns

ns

ns ns

15tc(EMWCYCLE)

16tsu(EMCEL-EMWEL)

17th(EMWEH-EMCEH)

20tsu(EMBAV-EMWEL)

21th(EMWEH-EMBAIV)

22tsu(EMAV-EMWEL)

23th(EMWEH-EMAIV)

24 tw(EMWEL)

25td(EMWAITH-

EMWEH)

26tsu(EMDV-EMWEL)

EMIF write cycle time (EW = 0)

EMIF write cycle time (EW = 1)

Output setup time, EM_CE[1:0] low to EM_WE low (SS = 0)

Output setup time, EM_CE[1:0] low to EM_WE low (SS = 1)

Output hold time, EM_WE high to EM_CE[1:0] high (SS = 0)

Output hold time, EM_WE high to EM_CE[1:0] high (SS = 1)

Output setup time, EM_BA[1:0] valid to EM_WE low

Output hold time, EM_WE high to EM_BA[1:0] invalid

Output setup time, EM_A[13:0] valid to EM_WE low

Output hold time, EM_WE high to EM_A[13:0] invalid

EM_WE active low width (EW = 0)

EM_WE active low width (EW = 1)

Delay time from EM_WAIT deasserted to EM_WE high

Output setup time, EM_D[15:0] valid to EM_WE low

(WS+WST+WH)*E

(WS+WST+WH+(EW

C*16))*E

(WS)*E

0

(WH)*E

0

(WS)*E

(WH)*E

(WS)*E

(WH)*E

(WST)*E

(WST+(EWC*16))*E

4E

(WS)*E

ns ns

ns

ns

ns

ns

ns

ns

ns

ns

ns ns

ns

ns

108

Peripheral Information and Electrical Specifications

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Texas Instruments TMS320DM355 warranty DM355 MINNom, Rst*E, Uni Max T, Ws+Wst+Wh*E Ws+Wst+Wh+Ew, Wst*E
Page 107 Page 109

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.
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