SAM9G10 Atmel Corporation, SAM9G10 Datasheet - Page 492
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SAM9G10
Manufacturer Part Number
SAM9G10
Description
Manufacturer
Atmel Corporation
Datasheets
1.SAM9261.pdf
(1274 pages)
2.SAM9261.pdf
(43 pages)
3.SAM9G10.pdf
(750 pages)
4.SAM9G10.pdf
(39 pages)
Specifications of SAM9G10
Flash (kbytes)
0 Kbytes
Pin Count
217
Max. Operating Frequency
266 MHz
Cpu
ARM926
Hardware Qtouch Acquisition
No
Max I/o Pins
96
Ext Interrupts
96
Usb Transceiver
3
Usb Speed
Full Speed
Usb Interface
Host, Device
Spi
2
Twi (i2c)
1
Uart
4
Ssc
3
Sd / Emmc
1
Graphic Lcd
Yes
Video Decoder
No
Camera Interface
No
Resistive Touch Screen
No
Temp. Sensor
No
Crypto Engine
No
Sram (kbytes)
16
Self Program Memory
NO
External Bus Interface
1
Dram Memory
sdram
Nand Interface
Yes
Picopower
No
Temp. Range (deg C)
-40 to 85
I/o Supply Class
1.8/3.3
Operating Voltage (vcc)
1.08 to 1.32
Fpu
No
Mpu / Mmu
No/Yes
Timers
3
Output Compare Channels
3
Input Capture Channels
3
32khz Rtc
Yes
Calibrated Rc Oscillator
No
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SAM9G35
SAM9G35
Figure 31-9. Multi-buffer DMAC Transfer with Source and Destination Address Auto-reloaded
6. The DMAC transfer proceeds as follows:
Channel Enable in the Channel Status Register (DMAC_CHSR.ENABLE[n]) until it is
disabled, to detect when the transfer is complete. If the DMAC is not in Row 1, the next
step is performed.
a. If interrupts is un-masked (DMAC_EBCIMR.BTC[x] = ‘1’, where x is the channel
b. If the buffer complete interrupt is masked (DMAC_EBCIMR.BTC[x] = ‘1’, where x is
number) hardware sets the buffer complete interrupt when the buffer transfer has
completed. It then stalls until the STALLED[n] bit of DMAC_CHSR register is
cleared by software, writing ‘1’ to DMAC_CHER.KEEPON[n] bit where n is the
channel number. If the next buffer is to be the last buffer in the DMAC transfer, then
the buffer complete ISR (interrupt service routine) should clear the automatic mode
bit in the DMAC_CTRLBx.AUTO bit. This put the DMAC into Row 1 as shown in
Table 31-3 on page
fer, then the reload bits should remain enabled to keep the DMAC in Row 4.
the channel number), then hardware does not stall until it detects a write to the buf-
fer complete interrupt enable register DMAC_EBCIER register but starts the next
buffer transfer immediately. In this case software must clear the automatic mode bit
in the DMAC_CTRLB to put the DMAC into ROW 1 of
before the last buffer of the DMAC transfer has completed. The transfer is similar to
that shown in
31-10 on page
Source Layer
Address of
SADDR
Figure 31-9 on page
493.
Source Buffers
483. If the next buffer is not the last buffer in the DMAC trans-
492. The DMAC transfer flow is shown in
Block2
Block0
Block1
BlockN
Destination Buffers
Table 31-3 on page 483
DADDR
Destination Layer
Address of
11053B–ATARM–22-Sep-11
11053B–ATARM–22-Sep-11
Figure
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