Frmheight, Frmwidth | Texas Instruments TMS320C64x DSP manual

Video Display Registers

4.12.3 Video Display Frame Size Register (VDFRMSZ)

The video display frame size register (VDFRMSZ) sets the display channel frame size by setting the ending values for the frame line counter (FLCOUNT) and the frame pixel counter (FPCOUNT). The VDFRMSZ is shown in Figure 4–41 and described in Table 4–8.

The FPCOUNT starts at 0 and counts to FRMWIDTH – 1 before restarting. The FLCOUNT starts at 1 and counts to FRMHEIGHT before restarting.

Figure 4–41. Video Display Frame Size Register (VDFRMSZ)

31	28	27	16
	Reserved		FRMHEIGHT

	R-0		R/W-0
15	12	11	0

	Reserved		FRMWIDTH

	R-0		R/W-0

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

Table 4–8. Video Display Frame Size Register (VDFRMSZ) Field Descriptions

Bit	field†	symval†	Value	Description
31–28	Reserved	–	0	Reserved. The reserved bit location is always read as 0. A
				value written to this field has no effect.

27–16	FRMHEIGHT	OF(value)	0–FFFh	Defines the total number of lines per frame. The number is
				the ending value of the frame line counter (FLCOUNT).
				For BT.656 operation, the FRMHIGHT is set to 525
				(525/60 operation) or 625 (625/50 operation).

15–12	Reserved	–	0	Reserved. The reserved bit location is always read as 0. A
				value written to this field has no effect.

11–0	FRMWIDTH	OF(value)	0–FFFh	Defines the total number of pixels per line including blanking.
				The number is the frame pixel counter (FPCOUNT) ending
				value + 1.

For BT.656 operation, the FRMWIDTH is typically 858 or 864.

† For CSL implementation, use the notation VP_VDFRMSZ_field_symval

4-60

Video Display 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 Video Display Frame Size Register Vdfrmsz, Frmheight, Frmwidth

Models: TMS320C64x DSP

4.12.3 Video Display Frame Size Register (VDFRMSZ)

Figure 4–41. Video Display Frame Size Register (VDFRMSZ)

FRMHEIGHT

FRMWIDTH

Bit

field†

Value

OF(value)

OF(value)

TMS320C64x DSP specifications