Texas Instruments TMS3320C5515 specification

System Configuration and Control

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1.7.4.2.1DMA Interrupt Flag Register (DMAIFR) [1C30h] and DMA Interrupt Enable Register (DMAIER) [1C31h]

The DSP includes two registers for aggregating the four channel interrupts of the four DMA controllers. Use the DMA interrupt enable register (DMAIER) to enable channel interrupts. At the end of a block transfer, if the DMA controller channel interrupt enable (DMAnCHmIE) bit is 1, an interrupt request is sent to the DSP CPU, where it can be serviced or ignored. Each channel can generate an interrupt, although all channel interrupts are aggregated into a single DMA interrupt signal to the CPU.

To see which channel generated an interrupt, your program can read the DMA interrupt flag register (DMAIFR). The DMA controller channel interrupt flag (DMAnCHmIF) bits are set to 1 when a DMA channel generates an interrupt. Your program must manually clear the bits of DMAIFR by writing a 1 to the bit positions to be cleared.

Figure 1-42. DMA Interrupt Flag Register (DMAIFR) [1C30h]

15	14	13	12	11	10	9	8
DMA3CH3IF	DMA3CH2IF	DMA3CH1IF	DMA3CH0IF	DMA2CH3IF	DMA2CH2IF	DMA2CH1IF	DMA2CH0IF

RW-0	RW-0	RW-0	RW-0	RW-0	RW-0	RW-0	RW-0
7	6	5	4	3	2	1	0

DMA1CH3IF	DMA1CH2IF	DMA1CH1IF	DMA1CH0IF	DMA0CH3IF	DMA0CH2IF	DMA0CH1IF	DMA0CH0IF
RW-0	RW-0	RW-0	RW-0	RW-0	RW-0	RW-0	RW-0

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

Figure 1-43. DMA Interrupt Enable Register (DMAIER) [1C31h]

15	14	13	12	11	10	9	8
DMA3CH3IE	DMA3CH2IE	DMA3CH1IE	DMA3CH0IE	DMA2CH3IE	DMA2CH2IE	DMA2CH1IE	DMA2CH0IE

RW-0	RW-0	RW-0	RW-0	RW-0	RW-0	RW-0	RW-0
7	6	5	4	3	2	1	0

DMA1CH3IE	DMA1CH2IE	DMA1CH1IE	DMA1CH0IE	DMA0CH3IE	DMA0CH2IE	DMA0CH1IE	DMA0CH0IE

RW-0	RW-0	RW-0	RW-0	RW-0	RW-0	RW-0	RW-0

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

Table 1-54. DMA Interrupt Flag Register (DMAIFR) Field Descriptions

Bit	Field	Value	Description

15-0	DMAnCHmIF		Channel interrupt status bits.
		0	DMA controller n, channel m has not completed its block transfer.
		1	DMA controller n, channel m block transfer complete.

Table 1-55. DMA Interrupt Enable Register (DMAIER) Field Descriptions

Bit	Field	Value	Description

15-0	DMAnCHmIE		Channel interrupt enable bits.
		0	DMA controller n, channel m interrupt is disabled.
		1	DMA controller n, channel m interrupt is enabled.

72	System Control	SPRUFX5A –October 2010 –Revised November 2010
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TMS3320C5515 specifications

The Texas Instruments TMS3320C5515 is a highly specialized digital signal processor (DSP) designed for a wide range of applications, including telecommunications, audio processing, and other signal-intensive tasks. As part of the TMS320 family of DSPs, the TMS3320C5515 leverages TI's extensive experience in signal processing technology, delivering robust performance and reliability.

One of the main features of the TMS3320C5515 is its 32-bit architecture, which allows for a high level of precision in digital signal computation. The processor is capable of executing complex mathematical algorithms, making it suitable for tasks that require high-speed data processing, such as speech recognition and audio filtering. With a native instruction set optimized for DSP applications, the TMS3320C5515 can perform multiply-accumulate operations in a single cycle, significantly enhancing computational efficiency.

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Another noteworthy aspect is the extensive development ecosystem surrounding the TMS3320C5515, which includes software tools, libraries, and support resources designed to accelerate the development process. This allows engineers and developers to bring their projects to market more quickly while minimizing risk.

Overall, the Texas Instruments TMS3320C5515 stands out as a powerful DSP solution, equipped with features that cater to the needs of various industries. Its combination of performance, efficiency, and versatile application makes it an attractive choice for engineers working in signal processing.

Texas Instruments TMS3320C5515 manual DMA Interrupt Flag Register Dmaifr Field Descriptions

Models: TMS3320C5515

Figure 1-42. DMA Interrupt Flag Register (DMAIFR) [1C30h]

Figure 1-43. DMA Interrupt Enable Register (DMAIER) [1C31h]

Table 1-54. DMA Interrupt Flag Register (DMAIFR) Field Descriptions

Bit

Table 1-55. DMA Interrupt Enable Register (DMAIER) Field Descriptions

Bit

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TMS3320C5515 specifications