Ccmpb, Vcbctl | Texas Instruments TMS320C64x DSP guide

Video Port Control Registers

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

Bit	field	symval	Value	Description
18	CCMPB			Capture complete on channel B interrupt detected bit. (Data is not
				in memory until the DMA transfer is complete.)
				BT.656 or Y/C capture mode – CCMPB is set after capturing an
				entire field or frame (when F1C, F2C, or FRMC in VCBSTAT are
				set) depending on the CON, FRAME, CF1, and CF2 control bits in
				VCBCTL.
				Raw data mode – RDFE is not set, CCMPB is set when FRMC in
				VCBSTAT is set (when the data counter = the combined
				VCYSTOP/VCXSTOP value).
				TSI capture mode – CCMPB is set when FRMC in VCBSTAT is set
				(when the data counter = the combined VCYSTOP/VCXSTOP
				value).
		NONE	0	No interrupt is detected.
		CLEAR	1	Interrupt is detected. Bit is cleared.

17	COVRB			Capture overrun on channel B interrupt detected bit. COVRB is set
				when data in the FIFO was overwritten before being read out (by
				the DMA).
		NONE	0	No interrupt is detected.
		CLEAR	1	Interrupt is detected. Bit is cleared.

16	GPIO			Video port general purpose I/O interrupt detected bit.
		NONE	0	No interrupt is detected.
		CLEAR	1	Interrupt is detected. Bit is cleared.

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

14	DCNA			Display complete not acknowledged. Indicates that the F1D, F2D,
				or FRMD bit that caused the display complete interrupt was not
				cleared prior to the start of the next gating field or frame.
		NONE	0	No interrupt is detected.
		CLEAR	1	Interrupt is detected. Bit is cleared.

† For CSL implementation, use the notation VP_VPIS_field_symval

2-26

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 Ccmpb, Vcbctl

Models: TMS320C64x DSP

Bit

field

Value

CCMPB

VCBCTL.

DCNA

TMS320C64x DSP specifications