SAM9G20 Atmel Corporation, SAM9G20 Datasheet - Page 802
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: 802 of 832
- Download datasheet (13Mb)
44.2
44.2.1
44.2.1.1
44.2.2
44.2.2.1
44.2.2.2
44.2.3
44.2.3.1
802
AT91SAM9G20 Errata - Revision “A” 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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