AT91SAM9260 ATMEL Corporation, AT91SAM9260 Datasheet - Page 19

• Manufacturer Part Number: AT91SAM9260
• Description: AT91 ARM Thumb Microcontrollers
• Manufacturer: ATMEL Corporation

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7.3
7.4
6221DS–ATARM–22-Sep-06
Peripheral DMA Controller
Debug and Test Features
The Peripheral DMA Controller handles transfer requests from the channel according to the
following 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
• ARM926 Real-time In-circuit Emulator
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
– MCI Transmit/Receive Channel
– Two real-time Watchpoint Units
– Two Independent Registers: Debug Control Register and Debug Status Register
AT91SAM9260 Preliminary
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