None Clear, VCLK2P, None Reverse | Texas Instruments TMS320C64x DSP

Video Port Control Registers

Table 2–5. Video Port Control Register (VPCTL) Field Descriptions (Continued)

Bit	field†	symval†	Value	Description
14	VPHLT			Video port halt bit. This bit is set upon hardware or software
				reset. The other VPCTL bits (except VPRST) can only be
				changed when VPHLT is 1. VPHLT is cleared by writing a 1.
				Writing 0 has no effect.
		NONE	0
		CLEAR	1

13–8	Reserved	–	0	Reserved. The reserved bit location is always read as 0. A
				value written to this field has no effect.

7	VCLK2P			VCLK2 pin polarity bit. Has no effect in capture mode.
		NONE	0
		REVERSE	1	Inverts the VCLK2 output clock polarity in display mode.

6	VCT3P			VCTL3 pin polarity. Does not affect GPIO operation. If VCTL3
				pin is used as a FLD input on the video capture side, then the
				VCTL3 polarity is not considered; the field inverse is controlled
				by the FINV bit in the video capture channel x control register
				(VCxCTL).
		NONE	0
		ACTIVELOW	1	Indicates the VCTL3 control signal (input or output) is active
				low.

5	VCT2P			VCTL2 pin polarity bit. Does not affect GPIO operation.
		NONE	0
		ACTIVELOW	1	Indicates the VCTL2 control signal (input or output) is active
				low.

4	VCT1P			VCTL1 pin polarity bit. Does not affect GPIO operation.
		NONE	0
		ACTIVELOW	1	Indicates the VCTL1 control signal (input or output) is active
				low.

3	Reserved	–	0	Reserved. The reserved bit location is always read as 0. A
				value written to this field has no effect.

†For CSL implementation, use the notation VP_VPCTL_field_symval

2-18

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 None Clear, VCLK2P, None Reverse, None Activelow

Models: TMS320C64x DSP

Table 2–5. Video Port Control Register (VPCTL) Field Descriptions (Continued)

Bit

field†

symval†

NONE

CLEAR

VCLK2P

NONE

REVERSE

NONE

ACTIVELOW

TMS320C64x DSP specifications