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AT91SAM9G45 Folha de dados(PDF) 21 Page - ATMEL Corporation

Nome de Peças AT91SAM9G45
Descrição Electrónicos  AT91 ARM Thumb-based Microcontrollers
PDF  56 Pages
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Fabricante Electrônico  ATMEL [ATMEL Corporation]
Página de início  http://www.atmel.com
Logo ATMEL - ATMEL Corporation

AT91SAM9G45 Folha de dados(HTML) 21 Page - ATMEL Corporation

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21
6438ES–ATARM–21-Jun-10
AT91SAM9G45
Figure 6-2.
USB Selection
6.5
DMA Controller
•Two Masters
• Embeds 8 channels
• 64 bytes/FIFO for Channel Buffering
• Linked List support with Status Write Back operation at End of Transfer
• Word, HalfWord, Byte transfer support.
• memory to memory transfer
• Peripheral to memory
• Memory to peripheral
The DMA controller can handle the transfer between peripherals and memory and so receives
the triggers from the peripherals below. The hardware interface numbers are also given below in
Table
6.6
Debug and Test Features
• ARM926 Real-time In-circuit Emulator
HS
Transceiver
DMA
HS
USB
DMA
HS EHCI
FS OHCI
PA
PB
HS
Transceiver
1
0
EN_UDPHS
Table 6-7.
DMA Channel Definition
Instance Name
T/R
DMA Channel HW
interface Number
MCI0
TX/RX
0
SPI0
TX
1
SPI0
RX
2
SPI1
TX
3
SPI1
RX
4
SSC0
TX
5
SSC0
RX
6
SSC1
TX
7
SSC1
RX
8
AC97C
TX
9
AC97C
RX
10
MCI1
TX/RX
13



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