MSP430F5438A Datasheet, PDF (22/106 Pages) Texas Instruments – Mixed Signal Microcontroller

MSP430F5438A, MSP430F5437A, MSP430F5436A, MSP430F5435A
MSP430F5419A, MSP430F5418A
SLAS655D – JANUARY 2010 – REVISED AUGUST 2013
www.ti.com
DMA Controller (Link to User's Guide)
The DMA controller allows movement of data from one memory address to another without CPU intervention. For
example, the DMA controller can be used to move data from the ADC12_A conversion memory to RAM. Using
the DMA controller can increase the throughput of peripheral modules. The DMA controller reduces system
power consumption by allowing the CPU to remain in sleep mode, without having to awaken to move data to or
from a peripheral.
Table 8. DMA Trigger Assignments ⁽¹⁾
TRIGGER
0
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
0
DMAREQ
TA0CCR0 CCIFG
TA0CCR2 CCIFG
TA1CCR0 CCIFG
TA1CCR2 CCIFG
TB0CCR0 CCIFG
TB0CCR2 CCIFG
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
UCA0RXIFG
UCA0TXIFG
UCB0RXIFG
UCB0TXIFG
UCA1RXIFG
UCA1TXIFG
UCB1RXIFG
UCB1TXIFG
ADC12IFGx
Reserved
Reserved
Reserved
Reserved
MPY ready
DMA2IFG
DMAE0
CHANNEL
1
DMAREQ
TA0CCR0 CCIFG
TA0CCR2 CCIFG
TA1CCR0 CCIFG
TA1CCR2 CCIFG
TB0CCR0 CCIFG
TB0CCR2 CCIFG
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
UCA0RXIFG
UCA0TXIFG
UCB0RXIFG
UCB0TXIFG
UCA1RXIFG
UCA1TXIFG
UCB1RXIFG
UCB1TXIFG
ADC12IFGx
Reserved
Reserved
Reserved
Reserved
MPY ready
DMA0IFG
DMAE0
2
DMAREQ
TA0CCR0 CCIFG
TA0CCR2 CCIFG
TA1CCR0 CCIFG
TA1CCR2 CCIFG
TB0CCR0 CCIFG
TB0CCR2 CCIFG
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
UCA0RXIFG
UCA0TXIFG
UCB0RXIFG
UCB0TXIFG
UCA1RXIFG
UCA1TXIFG
UCB1RXIFG
UCB1TXIFG
ADC12IFGx
Reserved
Reserved
Reserved
Reserved
MPY ready
DMA1IFG
DMAE0
(1) Reserved DMA triggers may be used by other devices in the family. Reserved DMA triggers do not
cause any DMA trigger event when selected.
22
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