at91sam9g25-cu ATMEL Corporation, at91sam9g25-cu Datasheet - Page 29

• Manufacturer Part Number: at91sam9g25-cu
• Description: At91sam Arm-based Embedded Mpu
• Manufacturer: ATMEL Corporation

6.8
11032AS–ATARM–27-Jul-11
DMA Controller 0
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 in
Table 6-3.
Instance name
HSMCI0
SPI0
SPI0
USART0
USART0
USART1
USART1
TWI0
TWI0
TWI2
TWI2
UART0
UART0
SSC
SSC
• Two Masters
• Embeds 8 channels
• 64-byte FIFO for channel 0, 16-byte FIFO for Channel 1 to 7
• features:
– 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
DMA Channel Definition
T/R
RX/TX
RX
RX
RX
TX
RX
TX
RX
TX
RX
TX
RX
TX
TX
TX
DMA Channel HW
interface Number
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
SAM9G25
Table
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