Texas Instruments TMS320C64x DSP instruction

Video Port Control Registers

Table 2–9. Video Port Interrupt Status Register (VPIS) Field Descriptions (Continued)

Bit	field	symval	Value	Description
7	LFDA			Long field detected on channel A interrupt detected bit. (A long
				field is only detected when the VRST bit in VCACTL is cleared to
				0; when VRST = 1, a long field is always detected.)
				BT.656 or Y/C capture mode – LFDA is set when long field
				detection is enabled and VCOUNT is not reset before
				VCOUNT = YSTOP + 1.
				Raw data mode, or TSI capture mode or display mode – Not used.
		NONE	0	No interrupt is detected.
		CLEAR	1	Interrupt is detected. Bit is cleared.

6	SFDA			Short field detected on channel A interrupt detected bit.
				BT.656 or Y/C capture mode – SFDA is set when short field
				detection is enabled and VCOUNT is reset before
				VCOUNT = YSTOP.
				Raw data mode, or TSI capture mode or display mode – Not used.
		NONE	0	No interrupt is detected.
		CLEAR	1	Interrupt is detected. Bit is cleared.

5	VINTA2			Channel A field 2 vertical interrupt detected bit.
				BT.656, or Y/C capture mode or any display mode – VINTA2 is set
				when a vertical interrupt occurred in field 2.
				Raw data mode or TSI capture mode – Not used.
		NONE	0	No interrupt is detected.
		CLEAR	1	Interrupt is detected. Bit is cleared.

4	VINTA1			Channel A field 1 vertical interrupt detected bit.
				BT.656, or Y/C capture mode or any display mode – VINTA1 is set
				when a vertical interrupt occurred in field 1.
				Raw data mode or TSI capture mode – Not used.
		NONE	0	No interrupt is detected.
		CLEAR	1	Interrupt is detected. Bit is cleared.

†For CSL implementation, use the notation VP_VPIS_field_symval

2-28

Video Port

SPRU629

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 BT.656 or Y/C capture mode Lfda is set when long field

Models: TMS320C64x DSP

Bit

field

Value

LFDA

BT.656 or Y/C capture mode – LFDA is set when long field

VCOUNT = YSTOP + 1.

VCOUNT = YSTOP.

TMS320C64x DSP specifications