SAM9G20 Atmel Corporation, SAM9G20 Datasheet - Page 955
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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41.8.18
Name:
Address:
Access:
This register can only be written if the WPEN bit is cleared in
• TSMODE: Touchscreen Mode
When TSMOD equals 01 or 10 (i.e. 4-wire mode), channel 0, 1, 2 and 3 must not be used for classic ADC conversions.
When TSMOD equals 11 (i.e. 5-wire mode), channel 0, 1, 2, 3, and 4 must not be used.
• TSAV: Touchscreen Average
• TSFREQ: Touchscreen Frequency
Defines the Touchscreen Frequency compared to the Trigger Frequency.
TSFREQ must be greater or equal to TSAV.
The Touchscreen Frequency is:
11053B–ATARM–22-Sep-11
Value
Value
Touchscreen Frequency = Trigger Frequency / 2
31
23
15
0
1
2
3
–
–
7
–
0
1
2
3
ADC Touchscreen Mode Register
NOTSDMA
4_WIRE_NO_PM
NO_FILTER
AVG2CONV
AVG4CONV
AVG8CONV
30
22
14
ADC_TSMR
0xF804C0B0
Read-write
–
6
–
4_WIRE
5_WIRE
NONE
Name
Name
PENDBC
29
21
13
–
–
5
Description
No Touchscreen
4-wire Touchscreen without pressure measurement
4-wire Touchscreen with pressure measurement
5-wire Touchscreen
Description
No Filtering. Only one ADC conversion per measure
Averages 2 ADC conversions
Averages 4 ADC conversions
Averages 8 ADC conversions
TSAV
28
20
12
–
–
4
TSFREQ
“ADC Write Protect Mode Register” on page
27
19
11
–
3
–
26
18
10
–
2
–
TSSCTIM
TSFREQ
25
17
–
9
1
TSMODE
SAM9G35
961.
PENDET
24
16
8
0
955
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