CC2430
Peripherals
: DMA Controller
Table 41: DMA Trigger Sources
DMA
Trigger
number
DMA Trigger
name
Functional unit
Description
DMA
0
NONE
No trigger, setting DMAREQ.DMAREQx bit starts transfer
DMA channel is triggered by completion of previous channel
Timer 1, compare, channel 0
Timer 1, compare, channel 1
Timer 1, compare, channel 2
Timer 2, compare
DMA
1
PREV
Timer 1
Timer 1
Timer 1
Timer 2
Timer 2
Timer 3
Timer 3
Timer 4
Timer 4
Sleep Timer
IO Controller
IO Controller
USART0
2
T1_CH0
T1_CH1
T1_CH2
T2_COMP
T2_OVFL
T3_CH0
T3_CH1
T4_CH0
T4_CH1
ST
3
4
5
6
Timer 2, overflow
7
Timer 3, compare, channel 0
Timer 3, compare, channel 1
Timer 4, compare, channel 0
Timer 4, compare, channel 1
Sleep Timer compare
8
9
10
11
12
13
14
15
16
17
18
IOC_0
Port 0 I/O pin input transition9
Port 1 I/O pin input transition9
USART0 RX complete
IOC_1
URX0
USART0
UTX0
USART0 TX complete
USART1
URX1
USART1 RX complete
USART1
UTX1
USART1 TX complete
Flash
FLASH
Flash data write complete
controller
Radio
ADC
ADC
ADC
ADC
ADC
ADC
ADC
ADC
ADC
AES
AES
19
20
21
22
23
24
25
26
27
28
29
30
RADIO
RF packet byte received/transmit
ADC_CHALL
ADC_CH11
ADC_CH21
ADC_CH32
ADC_CH42
ADC_CH53
ADC_CH63
ADC_CH74
ADC_CH84
ENC_DW
ADC end of a conversion in a sequence, sample ready
ADC end of conversion channel 0 in sequence, sample ready
ADC end of conversion channel 1 in sequence, sample ready
ADC end of conversion channel 2 in sequence, sample ready
ADC end of conversion channel 3 in sequence, sample ready
ADC end of conversion channel 4 in sequence, sample ready
ADC end of conversion channel 5 in sequence, sample ready
ADC end of conversion channel 6 in sequence, sample ready
ADC end of conversion channel 7 in sequence, sample ready
AES encryption processor requests download input data
AES encryption processor requests upload output data
ENC_UP
9
Using this trigger source must be aligned with port interrupt enable bits, PICTL.P0IENL/H and
P1IEN.Note that all interrupt enabled port pins will generate a trigger and the trigger is generated on
each level change on the enabled input (0-1 gives a trigger as does 1-0).
CC2430 Data Sheet (rev. 2.1) SWRS036F
Page 94 of 211
TAOS [ TEXAS ADVANCED OPTOELECTRONIC SOLUTIONS ]
