TMS320F28375DPZP datasheet(193/226 Pages) TI

193 / 226 page

9.8 Direct Memory Access

Each CPU has its own 6-channel DMA module. The DMA module provides a hardware method of transferring

data between peripherals and/or memory without intervention from the CPU, thereby freeing up bandwidth for

other system functions. Additionally, the DMA has the capability to orthogonally rearrange the data as it is

transferred as well as “ping-pong” data between buffers. These features are useful for structuring data into

blocks for optimal CPU processing.

The DMA module is an event-based machine, meaning it requires a peripheral or software trigger to start a DMA

transfer. Although it can be made into a periodic time-driven machine by configuring a timer as the interrupt

trigger source, there is no mechanism within the module itself to start memory transfers periodically. The

interrupt trigger source for each of the six DMA channels can be configured separately and each channel

contains its own independent PIE interrupt to let the CPU know when a DMA transfer has either started or

completed. Five of the six channels are exactly the same, while Channel 1 has the ability to be configured at a

higher priority than the others.

DMA features include:

• Six channels with independent PIE interrupts

• Peripheral interrupt trigger sources

– ADC interrupts and EVT signals

– Multichannel buffered serial port transmit and receive

– External interrupts

– CPU timers

– EPWMxSOC signals

– SPIx transmit and receive

– SDFM

– Software trigger

• Data sources and destinations:

– GSx RAM

– CPU message RAM (IPC RAM)

– ADC result registers

– ePWMx

– SPI

– McBSP

– EMIF

• Word Size: 16-bit or 32-bit (SPI and McBSP limited to 16-bit)

• Throughput: four cycles/word (without arbitration)

www.ti.com

TMS320F28379D, TMS320F28379D-Q1, TMS320F28378D, TMS320F28377D

TMS320F28377D-Q1, TMS320F28376D, TMS320F28375D, TMS320F28374D

SPRS880O – DECEMBER 2013 – REVISED FEBRUARY 2021

Submit Document Feedback

193

Product Folder Links: TMS320F28379D TMS320F28379D-Q1 TMS320F28378D TMS320F28377D

TMS320F28377D-Q1 TMS320F28376D TMS320F28375D TMS320F28374D

TMS320F28375DPZP Datasheet(PDF) 193 Page - Texas Instruments

TMS320F28375DPZP Datasheet(HTML) 193 Page - Texas Instruments

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 ...More

Datasheet Download

Link URL