參數(shù)資料
型號: MSP430F5638IPZR
廠商: TEXAS INSTRUMENTS INC
元件分類: 微控制器/微處理器
英文描述: 16-BIT, FLASH, 20 MHz, RISC MICROCONTROLLER, PQFP100
封裝: GREEN, PLASTIC, LQFP-100
文件頁數(shù): 16/101頁
文件大?。?/td> 1073K
代理商: MSP430F5638IPZR
PRODUCTPREVIEW
MSP430F563x
www.ti.com
SLAS650A – JUNE 2010 – REVISED JULY 2010
DMA Controller
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.
The USB timestamp generator also utilizes the channel 0, 1, and 2 DMA trigger assignments described in
Table 11. DMA Trigger Assignments (1)
Channel
Trigger
0
1
2
3
4
5
0
DMAREQ
1
TA0CCR0 CCIFG
2
TA0CCR2 CCIFG
3
TA1CCR0 CCIFG
4
TA1CCR2 CCIFG
5
TA2CCR0 CCIFG
6
TA2CCR2 CCIFG
7
TBCCR0 CCIFG
8
TBCCR2 CCIFG
9
Reserved
10
Reserved
11
Reserved
12
Reserved
13
Reserved
14
Reserved
15
Reserved
16
UCA0RXIFG
17
UCA0TXIFG
18
UCB0RXIFG
19
UCB0TXIFG
20
UCA1RXIFG
21
UCA1TXIFG
22
UCB1RXIFG
23
UCB1TXIFG
24
ADC12IFGx(2)
25
DAC12_0IFG(3)
26
DAC12_1IFG(3)
27
USB FNRXD
28
USB ready
29
MPY ready
30
DMA5IFG
DMA0IFG
DMA1IFG
DMA2IFG
DMA3IFG
DMA4IFG
31
DMAE0
(1)
Reserved DMA triggers may be used by other devices in the family. Reserved DMA triggers will not
cause any DMA trigger event when selected.
(2)
Only on devices with peripheral module ADC12_A. Reserved on devices without ADC.
(3)
Only on devices with peripheral module DAC12_A. Reserved on devices without DAC.
Copyright 2010, Texas Instruments Incorporated
21
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