Texas Instruments TMS320F2837 D Series

Direct Memory Access (DMA)
TMS320F2837xD Microcontroller Workshop - Direct Memory Access 8 - 3
Direct Memory Access (DMA)
DMA Triggers, Sources, and Destinations
McBSP
DMA
6-channels
ADC
Result 0-15
Triggers
PIE
DINTCH1-6
PWM1
PWM2
PWM11
PWM12
GS0 RAM
GS15 RAM
EMIF
ADCA/B/C/D (1-4, EVT)
MXEVTA/B MREVTA/B
XINT1-5 TINT0-2
ePWM1-12 (SOCA-B)
SD1FLT1-4 SD2FLT1-4
SPITX/RX (A-C)
USBA_EPx_RX/TX1-3
software
IPC MSG RAM
SPI
CAP
QEP
CMPSS
DAC
SDFM
DMA / CLA Common Peripheral Access
Common peripherals can be accessed by the CPU and either DMA or CLA
CLA Access / DMA Access
ePWM/HRPWM, eCAP, eQEP
,
CMPSS, DAC, SDFM
SPI A/B/C, McBSP A/B, uPP
(uPP has no DMA access)
PF1
PF2
1 - 03 - 215 - 4
PF2SEL PF1SEL
reserved
CpuSysRegs.SECMSEL
x0 = connected to CLA *
x1 = connected to DMA
* Default (lock bit protected)
Note: CPUSELx bit associated with each peripheral
defines if the peripheral is connected to CPU1 or CPU2
CPUx
CPUx.CLA
CPUx.DMA
Arbiter
CPUx Peripheral Frame 1
CPUx.SECMSEL
CPUx Peripheral Frame 2
CPUSELx.PERy