at91sam9260-cj ATMEL Corporation, at91sam9260-cj Datasheet - Page 19

• Manufacturer Part Number: at91sam9260-cj
• Description: At91 Arm Thumb Microcontrollers
• Manufacturer: ATMEL Corporation

7.3
6221G–ATARM–31-Jan-08
Peripheral DMA Controller
Table 7-3.
The Peripheral DMA Controller handles transfer requests from the channel according to the fol-
lowing priorities (Low to High priorities):
• Acting as one Matrix Master
• Allows data transfers from/to peripheral to/from any memory space without any intervention
• Next Pointer Support, forbids strong real-time constraints on buffer management.
• Twenty-two channels
2
3
4
of the processor.
– Two for each USART
– Two for the Debug Unit
– Two for each Serial Synchronous Controller
– Two for each Serial Peripheral Interface
– One for Multimedia Card Interface
– One for Analog-to-Digital Converter
– DBGU Transmit Channel
– USART5 Transmit Channel
– USART4 Transmit Channel
– USART3 Transmit Channel
– USART2 Transmit Channel
– USART1 Transmit Channel
– USART0 Transmit Channel
– SPI1 Transmit Channel
– SPI0 Transmit Channel
– SSC Transmit Channel
– DBGU Receive Channel
– USART5 Receive Channel
– USART4 Receive Channel
– USART3 Receive Channel
– USART2 Receive Channel
– USART1 Receive Channel
– USART0 Receive Channel
– ADC Receive Channel
– SPI1 Receive Channel
– SPI0 Receive Channel
– SSC Receive Channel
External Bus Interface
UHP User Interface
Internal Peripherals
Internal ROM
AT91SAM9260 Masters to Slaves Access
X
X
X
X
X
X
X
-
X
X
X
-
AT91SAM9260
X
-
-
-
X
-
-
-
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