SAM9263 Atmel Corporation, SAM9263 Datasheet - Page 291

• Manufacturer Part Number: SAM9263
• Manufacturer: Atmel Corporation

Specifications of SAM9263

• Flash (kbytes): 0 Kbytes
• Pin Count: 324
• Max. Operating Frequency: 240 MHz
• Cpu: ARM926
• Hardware Qtouch Acquisition: No
• Max I/o Pins: 160
• Ext Interrupts: 160
• Usb Transceiver: 3
• Usb Speed: Full Speed
• Usb Interface: Host, Device
• Spi: 2
• Twi (i2c): 1
• Uart: 4
• Can: 1
• Ssc: 2
• Ethernet: 1
• Sd / Emmc: 2
• Graphic Lcd: Yes
• Video Decoder: No
• Camera Interface: Yes
• Resistive Touch Screen: No
• Temp. Sensor: No
• Crypto Engine: No
• Sram (kbytes): 96
• Self Program Memory: NO
• External Bus Interface: 2
• Dram Memory: sdram
• Nand Interface: Yes
• Picopower: No
• Temp. Range (deg C): -40 to 85
• I/o Supply Class: 1.8/3.3
• Fpu: No
• Mpu / Mmu: No / Yes
• Timers: 3
• Output Compare Channels: 3
• Input Capture Channels: 3
• Pwm Channels: 4
• 32khz Rtc: Yes
• Calibrated Rc Oscillator: No

Figure 25-12. DMA Transfer Flow for Source Address Auto-reloaded and Linked List Destination Address
25.3.5.6
6249I–ATARM–3-Oct-11
Multi-block Transfer with Source Address Auto-reloaded and Contiguous Destination Address (Row 3)
DMAC Transfer Complete
interrupt generated here
1. Read the Channel Enable register to choose a free (disabled) channel.
2. Clear any pending interrupts on the channel from the previous DMA transfer by writing
3. Program the following channel registers:
to the Interrupt Clear registers: DMAC_ClearTfr, DMAC_ClearBlock,
DMAC_ClearSrcTran, DMAC_ClearDstTran, DMAC_ClearErr. Reading the Interrupt
Raw Status and Interrupt Status registers confirms that all interrupts have been
cleared.
Block Complete interrupt
generated here
Channel Disabled by
hardware
yes
Source/destination status fetch
DMAC State Machine Table?
Stall until block interrupt
DMAC block transfer
Hardware reprograms
MASKBLOCK[X]=1 ?
Cleared by hardware
DARx, CTLx, LLPx
CTLx.INT_EN=1
Channel Enabled by
Row1 or Row5 of
Reload SARx
LLI Fetch
Is DMAC in
software
&&
no
yes
AT91SAM9263
no
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