SAM9G25 Atmel Corporation, SAM9G25 Datasheet - Page 947
SAM9G25
Manufacturer Part Number
SAM9G25
Description
Manufacturer
Atmel Corporation
Datasheets
1.SAM9261.pdf
(248 pages)
2.SAM9261.pdf
(1274 pages)
3.SAM9261.pdf
(43 pages)
4.SAM9G25.pdf
(1147 pages)
5.SAM9G25.pdf
(53 pages)
Specifications of SAM9G25
Flash (kbytes)
0 Kbytes
Pin Count
247
Max. Operating Frequency
400 MHz
Cpu
ARM926
Hardware Qtouch Acquisition
No
Max I/o Pins
105
Ext Interrupts
105
Usb Transceiver
3
Usb Speed
Hi-Speed
Usb Interface
Host, Device
Spi
2
Twi (i2c)
3
Uart
7
Lin
4
Ssc
1
Ethernet
1
Sd / Emmc
2
Graphic Lcd
No
Video Decoder
No
Camera Interface
Yes
Adc Channels
12
Adc Resolution (bits)
10
Adc Speed (ksps)
440
Resistive Touch Screen
No
Temp. Sensor
No
Crypto Engine
No
Sram (kbytes)
32
Self Program Memory
NO
External Bus Interface
1
Dram Memory
DDR2/LPDDR, SDRAM/LPSDR
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
Pwm Channels
4
32khz Rtc
Yes
Calibrated Rc Oscillator
No
- SAM9261 PDF datasheet
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41.7.18
Name:
Address:
Access:
• TRGMOD: Trigger Mode
• TRGPER: Trigger Period
Effective only if TRGMOD defines a Periodic Trigger.
Defines the periodic trigger period, with the following equation:
The minimum time between 2 consecutive trigger events must be strictly greater than the duration time of the longest con-
version sequence according to configuration of registers ADC_MR, ADC_CHSR, ADC_SEQR1, ADC_SEQR2.
11032A–ATARM–27-Jul-11
11032A–ATARM–27-Jul-11
Value
31
23
15
0
1
2
3
4
5
6
7
–
7
–
ADC Trigger Register
ADC_TRGR
0xF804C0C0
Read-write
Trigger Period = (TRGPER+1) /ADCCLK
EXT_TRIG_RISE
EXT_TRIG_FALL
EXT_TRIG_ANY
PERIOD_TRIG
CONTINUOUS
NO_TRIGGER
30
22
14
–
6
–
Name
–
–
29
21
13
–
5
–
No trigger, only software trigger can start conversions
Continuous Mode
Description
External Trigger Rising Edge
External Trigger Falling Edge
External Trigger Any Edge
Reserved
Periodic Trigger (TRGPER shall be initiated appropriately)
Reserved
28
20
12
–
4
–
TRGPER
TRGPER
27
19
11
–
3
–
26
18
10
–
2
TRGMOD
25
17
–
9
1
SAM9G25
SAM9G25
24
16
–
8
0
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