SAM9G20 Atmel Corporation, SAM9G20 Datasheet - Page 810
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SAM9G20
Manufacturer Part Number
SAM9G20
Description
Manufacturer
Atmel Corporation
Datasheets
1.SAM9261.pdf
(248 pages)
2.SAM9261.pdf
(1274 pages)
3.SAM9261.pdf
(43 pages)
4.SAM9G20.pdf
(42 pages)
5.SAM9G20.pdf
(832 pages)
Specifications of SAM9G20
Flash (kbytes)
0 Kbytes
Pin Count
217
Max. Operating Frequency
400 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
7
Ssc
1
Ethernet
1
Sd / Emmc
1
Graphic Lcd
No
Video Decoder
No
Camera Interface
Yes
Adc Channels
4
Adc Resolution (bits)
10
Adc Speed (ksps)
95
Resistive Touch Screen
No
Temp. Sensor
No
Crypto Engine
No
Sram (kbytes)
32
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)
0.9 to 1.1
Fpu
No
Mpu / Mmu
No/Yes
Timers
6
Output Compare Channels
6
Input Capture Channels
6
32khz Rtc
Yes
Calibrated Rc Oscillator
No
- SAM9261 PDF datasheet
- SAM9261 PDF datasheet #2
- SAM9261 PDF datasheet #3
- SAM9G20 PDF datasheet #4
- SAM9G20 PDF datasheet #5
- Current page: 810 of 832
- Download datasheet (13Mb)
44.3
44.3.1
44.3.1.1
44.3.2
44.3.2.1
44.3.2.2
44.3.3
44.3.3.1
810
AT91SAM9G20 Errata - Revision “B” Parts
AT91SAM9G20
Analog-to-digital Converter (ADC)
Boot ROM
Error Corrected Code Controller (ECC)
ADC: Sleep Mode
Boot ROM: ROM Code, Internal RC Usage with SAM-BA Boot through USB
Boot ROM: MCCK Remains Active
ECC: 1-bit ECC per 512 Words
Refer to
If Sleep mode is activated while there is no activity (no conversion is being performed), it will
take effect only after a conversion occurs.
To activate sleep mode as soon as possible, it is recommended to write successively, ADC
Mode Register (SLEEP) then ADC Control Register (START bit field); to start an analog-to-digi-
tal conversion, in order put ADC into sleep mode at the end of this conversion.
Booting from the internal RC oscillator (OSCSEL = 0) prevents using SAM-BA Boot through the
USB device interface.
Use SAM-BA Boot through DBGU (or AT91SAM-ICE JTAG-ICE interface with SAM-BA GUI) if
the internal RC oscillator must be used.
Boot from the 32 kHz external oscillator (OSCEL =1) to use SAM-BA Boot through the USB.
The ROM boot sequence is as follows;
MCCK is not disabled after SDCard boot program. This does not affect the TWI boot program
but must be considered by any applications using SAM-BA boot.
None.
1-bit ECC per 512 words is not functional.
Perform the ECC computation by software.
Problem Fix/Workaround
Problem Fix/Workaround
Problem Fix/Workaround
Problem Fix/Workaround
– DataFlash on SPI0 NPCS0
– DataFlash on SPI0 NPCS1
– NAND FLash
– SDCard
– TWI
– SAM-BA Boot
Section 44.1 “Marking” on page
801.
6384E–ATARM–05-Feb-10
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