Texas Instruments TMS320C64x DSP guide

GPIO Registers

Table 5–9. Video Port Pin Data Clear Register (PDCLR) Field Descriptions

Bit	field†	symval†	Value	Description
31–23	Reserved	–	0	Reserved. The reserved bit location is always read as 0. A
				value written to this field has no effect.

22	PDCLR22			Allows PDOUT22 bit to be cleared to a logic low without
				affecting other I/O pins controlled by the same port.
		NONE	0	No effect.
		VCTL3CLR	1	Clears PDOUT22 (VCTL3) bit to 0.

21	PDCLR21			Allows PDOUT21 bit to be cleared to a logic low without
				affecting other I/O pins controlled by the same port.
		NONE	0	No effect.
		VCTL2CLR	1	Clears PDOUT21 (VCTL2) bit to 0.

20	PDCLR20			Allows PDOUT20 bit to be cleared to a logic low without
				affecting other I/O pins controlled by the same port.
		NONE	0	No effect.
		VCTL1CLR	1	Clears PDOUT20 (VCTL1) bit to 0.

19–0	PDCLR[19–0]			Allows PDOUT[19–0] bit to be cleared to a logic low without
				affecting other I/O pins controlled by the same port.
		NONE	0	No effect.
		VDATAnCLR	1	Clears PDOUT[n] (VDATA[n]) bit to 0.

†For CSL implementation, use the notation VP_PDCLR_PDCLRn_symval

5-18

General Purpose I/O Operation

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 Video Port Pin Data Clear Register Pdclr Field Descriptions

Models: TMS320C64x DSP

Table 5–9. Video Port Pin Data Clear Register (PDCLR) Field Descriptions

Bit

field†

PDCLR22

NONE

PDCLR21

NONE

PDCLR20

NONE

VCTL1CLR

NONE

TMS320C64x DSP specifications