Texas Instruments C2000 Workshop Guide And Lab Manual

Direct Memory Access (DMA)
C2000 Microcontroller Workshop - Direct Memory Access Controller 9 - 3
Direct Memory Access (DMA)
DMA Triggers, Sources, and Destinations
McBSP-A
DMA
6-channels
L5 DPSARAM
L6 DPSARAM
L7 DPSARAM
L8 DPSARAM
ADC
Result 0-15
Triggers
ADCINT1 / ADCINT2
MXEVTA / MREVTA
XINT1-3 / TINT0-2
ePWM1-6 (SOCA-B)
USB0EP1-3RX/TX
software
PIE
DINTCH1-6
PWM1
PWM2
PWM3
PWM4
PWM5
PWM6
SysCtrlRegs.EPWMCNF.bit.CONCNF
(maps ePWM to DMA bus or CLA bus)
DMA Definitions
 Word
 16 or 32 bits
 Word size is configurable per DMA channel

Burst
 Consists of multiple words
 Smallest amount of data transferred at one time

Burst Size
 Number of words per burst
 Specified by BURST_SIZE register
 5-bit ‘N-1’ value (maximum of 32 words/burst)
 Transfer
 Consists of multiple bursts
 Transfer Size
 Number of bursts per transfer
 Specified by TRANSFER_SIZE register
 16-bit ‘N-1’ value - exceeds any practical requirements

Texas Instruments C2000 Specifications

General

Brand	Texas Instruments
Model	C2000
Category	Microcontrollers
Language	English