Texas Instruments TMS320C64x DSP manual

GPIO Registers

5.1.9Video Port Pin Interrupt Enable Register (PIEN)

The video port pin interrupt enable register (PIEN) is shown in Figure 5–9 and described in Table 5–10. The GPIOs can be used to generate DSP interrupts or DMA events. The PIEN selects which pins may be used to generate an interrupt. Only pins whose corresponding bits in PIEN are set may cause their corresponding PISTAT bit to be set.

Interrupts are enabled on a GPIO pin when the corresponding bit in PIEN is set, the pin is enabled for GPIO in PFUNC, and the pin is configured as an input in PDIR.

Figure 5–9.	Video Port	Pin Interrupt Enable Register (PIEN)
31								24

			Reserved

				R-0
23	22	21	20	19		18	17	16

Reserved	PIEN22	PIEN21	PIEN20		PIEN19	PIEN18	PIEN17	PIEN16

R-0	R/W-0	R/W-0	R/W-0		R/W-0	R/W-0	R/W-0	R/W-0
15	14	13	12	11		10	9	8

PIEN15	PIEN14	PIEN13	PIEN12		PIEN11	PIEN10	PIEN9	PIEN8

R/W-0	R/W-0	R/W-0	R/W-0		R/W-0	R/W-0	R/W-0	R/W-0
7	6	5	4	3		2	1	0

PIEN7	PIEN6	PIEN5	PIEN4		PIEN3	PIEN2	PIEN1	PIEN0

R/W-0	R/W-0	R/W-0	R/W-0		R/W-0	R/W-0	R/W-0	R/W-0

Legend: R = Read only; R/W = Read/Write; -n= value after reset

SPRU629

General Purpose I/O Operation

5-19

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 Video Port Pin Interrupt Enable Register Pien

Models: TMS320C64x DSP

5.1.9Video Port Pin Interrupt Enable Register (PIEN)

Video Port

Pin Interrupt Enable Register (PIEN)

SPRU629

TMS320C64x DSP specifications