SAM9G20 Atmel Corporation, SAM9G20 Datasheet - Page 331
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
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- SAM9261 PDF datasheet #3
- SAM9G20 PDF datasheet #4
- SAM9G20 PDF datasheet #5
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26.7.6.1
Name:
Access:
Reset:
• EBI_CS1A: EBI Chip Select 1 Assignment
0 = EBI Chip Select 1 is assigned to the Static Memory Controller.
1 = EBI Chip Select 1 is assigned to the DDR2SDR Controller.
• EBI_CS3A: EBI Chip Select 3 Assignment
0 = EBI Chip Select 3 is only assigned to the Static Memory Controller and EBI_NCS3 behaves as defined by the SMC.
1 = EBI Chip Select 3 is assigned to the Static Memory Controller and the NAND Flash Logic is activated.
• EBI_DBPUC: EBI Data Bus Pull-Up Configuration
0 = EBI D0 - D15 Data Bus bits are internally pulled-up to the VDDIOM power supply.
1 = EBI D0 - D15 Data Bus bits are not internally pulled-up.
• EBI_DBPDC: EBI Data Bus Pull-Down Configuration
0 = EBI D0 - D15 Data Bus bits are internally pulled-down to the ground.
1 = EBI D0 - D15 Data Bus bits are not internally pulled-down.
• EBI_DRIVE: EBI I/O Drive Configuration
This allows to avoid overshoots and gives the best performance according to the bus load and external memories.
0 = Low drive (default).
1 = High drive.
• NFD0_ON_D16: NAND Flash Databus Selection
0 = NAND Flash I/Os are connected to D0-D15. VDDNF must be equal to VDDIOM (default).
1 = NAND Flash I/Os are connected to D16-D31. VDDNF can be different from or equal to VDDIOM
This can be used if the SMC connects to the NAND Flash only. Using this function with another device on the SMC will lead
to an unpredictable behavior of that device. In that case, the default value must be selected.
11053B–ATARM–22-Sep-11
31
23
15
–
–
–
7
–
EBI Chip Select Assignment Register
CCFG_EBICSA
Read-write
0x0000_0000
30
22
14
–
–
–
6
–
29
21
13
–
–
–
5
–
28
20
12
–
–
–
4
–
EBI_CS3A
27
19
11
–
–
–
3
26
18
10
–
–
–
2
–
DDR_MP_EN
EBI_DBPDC
EBI_DRIVE
EBI_CS1A
25
17
9
1
SAM9G35
NFD0_ON_D16
EBI_DBPUC
24
16
–
8
0
–
331
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