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CP3SP33SMS/NOPB 데이터시트(PDF) 56 Page - Texas Instruments

부품명 CP3SP33SMS/NOPB
상세설명  Connectivity Processor with Cache, DSP, and Bluetooth짰, USB, and Dual CAN Interfaces
PDF  407 Pages
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CP3SP33SMS/NOPB 데이터시트(HTML) 56 Page - Texas Instruments

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CP3SP33
SNOSCW5 – MAY 2013
www.ti.com
All DMA transfers are indirect mode, in which the data is read from the source into a DMAC buffer
register, then written from the buffer register to the destination.
Each DMAC channel has ten 32-bit control and status reg-isters. DMAC registers are named with the
suffix n, in which n is 0 to 15, representing the channel number.
If all of the channels are disabled (DMACNTn.CHEN = 0), the clock to the DMA module is disabled to
reduce power consumption.
12.1 DMA-Capable Peripherals
Table 12-1 shows the DMA-capable peripherals, which may be assigned to any of the 16 DMA channels
by programming the SRCRQ field of the DMACNTn registers. The SRCRQ field only selects the source of
the DMA request signal and the receiver for the DMA acknowledge signal. It is still necessary to set up the
address of the peripheral, the transfer direction, and other DMA channel control settings.
Table 12-1. DMA-Capable Peripherals
SRCRQ
PERIPHERAL
TRANSACTION
REGISTER
ASC CHANNEL
0
UART3
R
RXBUF3
0
1
UART3
W
TXBUF3
1
2
CVSD/PCM0
R
PCMOUT0
2
3
CVSD/PCM0
W
PCMIN0
3
4
CVSD/PCM1
R
PCMOUT1
4
5
CVSD/PCM1
W
PCMIN1
5
6
AAI Slot 0
R
ARDR0
6
7
AAI Slot 0
W
ATDR0
7
8
AAI Slot 1
R
ARDR1
8
9
AAI Slot 1
W
ATDR1
9
10
Codec ADC1
R
TCDCADC1
10
11
Codec ADC2
R
TCDCADC2
11
12
Codec DAC Left
W
TCDCLEFT
12
13
Codec DAC Right
W
TCDCRIGHT
13
14
I2S Left
R
I2SRXDATL
14
15
I2S Right
R
I2SRXDATR
15
16
I2S Left
W
I2STXDATL
16
17
I2S Right
W
I2STXDATR
17
18
MWSPI1
R
MWDAT
18
19
MWSPI1
W
MWDAT
19
20
ACCESS.bus 1
R/W
ACBSDA
20
21
USART0
R
RXBUF0
22
USART0
W
TXBUF0
23
UART1
R
RXBUF1
24
UART1
W
TXBUF1
25
UART2
R
RXBUF2
26
UART2
W
TXBUF2
27
CVSD/PCM0
R
CVSDOUT0
28
CVSD/PCM0
W
CVSDIN0
29
CVSD/PCM1
R
CVSDOUT1
30
CVSD/PCM1
W
CVSDIN1
31
AAI Slot 2
R
ARDR2
32
AAI Slot 2
W
ATDR2
56
CPU DMA Controller
Copyright © 2013, Texas Instruments Incorporated
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