Texas Instruments TMS320C64x DSP specification

DMA Operation

Figure 2–2. Display DMA Event Generation Flow Diagram

EOF

Start of field

FIFO empty

Generate DMA event, new events disabled

Pending Yes

DMA begun ?

FIFO

underrun ?

Yes

Underrun error

	Display data, no DMA			EOF
	pending			EOF
	pending
No	FIFO space			Display data
	FIFO space
	threshold ?
	Yes				Yes
	Yes			Field complete
				Field complete
Yes	Event counter			?
Yes
				No
	expired ?			No	End of field
	expired ?				End of field
	No		No
	No		FIFO underrun
			FIFO underrun
	Generate DMA event			?
	Generate DMA event
				Yes
	Display data, DMA		Underrun error
	pending, new events
	disabled		No
			No
	Pending DMA	No	FIFO underrun	Yes	Underrun error
	Pending DMA		FIFO underrun		Underrun error
	begun ?		?
	Yes
	Display data, DMA
	active, new events
	enabled		Yes		No
			Yes		No
	FIFO space	No	DMA complete	No	FIFO underrun
	FIFO space
	2x threshold
	2x threshold		?		?
	?		?		?
	Yes				Yes
					Yes
	Event counter	Yes	EOF		Underrun error
	Event counter				Underrun error
	expired ?
	expired ?
	No
	Generate DMA
	request
	Display Data, DMA active,
	and DMA pending		No
			No
Yes		No	FIFO underrun	Yes	Underrun error
	DMA complete		FIFO underrun		Underrun error
	?		?

SPRU629

Video Port

2-9

TMS320C64x DSP specifications

The TMS320C64x DSP family from Texas Instruments represents a significant milestone in the realm of digital signal processing. Launched as part of the C6000 series, the C64x DSPs are designed for high-performance applications requiring intensive computational capabilities, such as telecommunications, audio processing, video processing, and industrial control systems.

One of the standout features of the TMS320C64x DSP is its VLIW (Very Long Instruction Word) architecture, which allows for an exceptionally high level of parallelism. This architecture enables multiple instructions to be executed simultaneously, boosting the overall throughput and allowing for complex data processing tasks to be completed more quickly than with conventional DSPs.

The C64x DSPs also boast an impressive clock frequency range, typically up to 1 GHz, delivering substantial computational power for real-time processing goals. Additionally, these processors feature extensive on-chip memory, including L1 and L2 cache, which significantly enhances data access speeds and helps reduce bottlenecks during high-demand processing tasks.

Another key characteristic of the TMS320C64x family is its support for advanced instruction sets optimized for specific applications. These include SIMD (Single Instruction, Multiple Data) capabilities, allowing for efficient handling of large datasets often involved in multimedia processing or complex signal manipulation.

For connectivity, these DSPs often integrate advanced interfaces such as EMIF (External Memory Interface) and McBSP (Multichannel Buffered Serial Port), facilitating seamless interaction with a variety of peripheral devices. This ensures that the DSP can suit different application needs and integrate well into various system architectures.

Texas Instruments emphasizes low power consumption with the C64x DSPs, making them ideal for portable or energy-sensitive applications. Advanced power management techniques and technologies, such as dynamic voltage and frequency scaling, are incorporated to further enhance energy efficiency without compromising performance.

In summary, the Texas Instruments TMS320C64x DSP family stands out due to its high-performance capabilities driven by a VLIW architecture, high clock speeds, extensive memory options, a rich instruction set, and advanced connectivity features, all while maintaining power efficiency. These characteristics make it an exceptional choice for developers looking to integrate robust digital signal processing into their applications, whether in telecommunications, audio and video processing, or embedded control systems.

Texas Instruments TMS320C64x DSP manual Display DMA Event Generation Flow Diagram

Models: TMS320C64x DSP

Figure 2–2. Display DMA Event Generation Flow Diagram

SPRU629

TMS320C64x DSP specifications