SAM9263 Atmel Corporation, SAM9263 Datasheet - Page 293

• 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 25-13. Multi-block Transfer with Source Address Auto-reloaded and Contiguous Destination Address
6249I–ATARM–3-Oct-11
Address of
Source Layer
The transfer is similar to that shown in
The DMA Transfer flow is shown in
a. If interrupts are enabled (DMAC_CTLx.INT_EN = 1) and the block complete inter-
b. If interrupts are disabled (DMAC_CTLx.INT_EN = 0) or the block complete interrupt
SAR
rupt is un-masked (DMAC_MaskBlock[x] = 1’b1, where x is the channel number)
hardware sets the block complete interrupt when the block transfer has completed.
It then stalls until the block complete interrupt is cleared by software. If the next
block is to be the last block in the DMA transfer, then the block complete ISR (inter-
rupt service routine) should clear the source reload bit,
DMAC_CFGx.RELOAD_SR. This puts the DMAC into Row1 as shown in
2 on page
source reload bit should remain enabled to keep the DMAC in Row3 as shown in
Table 25-2 on page
is masked (DMAC_MaskBlock[x] = 1’b0, where x is the channel number) then hard-
ware does not stall until it detects a write to the block complete interrupt clear
register but starts the next block transfer immediately. In this case software must
clear the source reload bit, DMAC_CFGx.RELOAD_SR, to put the device into
ROW 1 of
completed.
Source Blocks
Table 25-2 on page 277
277. If the next block is not the last block in the DMA transfer then the
277.
Figure 25-14 on page
Block2
Block0
Block1
Figure 25-13 on page
Destination Blocks
before the last block of the DMA transfer has
DAR(2)
DAR(1)
DAR(0)
Destination Layer
294.
Address of
293.
AT91SAM9263
Table 25-
293