SAM9X35 Atmel Corporation, SAM9X35 Datasheet - Page 172
SAM9X35
Manufacturer Part Number
SAM9X35
Description
Manufacturer
Atmel Corporation
Datasheets
1.SAM9261.pdf
(248 pages)
2.SAM9X25.pdf
(45 pages)
3.SAM9X25.pdf
(1145 pages)
4.SAM9X25.pdf
(45 pages)
5.SAM9X25.pdf
(1325 pages)
Specifications of SAM9X35
Flash (kbytes)
0 Kbytes
Pin Count
217
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
Can
2
Lin
4
Ssc
1
Ethernet
1
Sd / Emmc
2
Graphic Lcd
Yes
Video Decoder
No
Camera Interface
No
Adc Channels
12
Adc Resolution (bits)
10
Adc Speed (ksps)
440
Resistive Touch Screen
Yes
Temp. Sensor
No
Crypto Engine
No
Sram (kbytes)
32
Self Program Memory
NO
External Bus Interface
1
Dram Memory
DDR/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
- SAM9X25 PDF datasheet #2
- SAM9X25 PDF datasheet #3
- SAM9X25 PDF datasheet #4
- SAM9X25 PDF datasheet #5
- Current page: 172 of 1325
- Download datasheet (30Mb)
21.5
21.6
172
Main Clock
Main Clock Selection
SAM9X35
Figure 21-3. Main Clock Block Diagram
The Main Clock has two sources:
The main clock can be generated either by an external 12 MHz crystal oscillator or by the on-
chip 12 MHz RC oscillator. This fast RC oscillator allows the processor to start or restart in a few
microseconds when 12 MHz internal RC is selected.
The 12 MHz crystal oscillator can be bypassed by setting the bit MOSCXTBY to accept an exter-
nal main clock on XIN.
• 12 MHz Fast RC Oscillator which starts very quickly and is used at startup
• 3 to 20 MHz Crystal Oscillator, which can be bypassed
Slow Clock
XOUT
SLCK
XIN
MOSCRCEN
MOSCRCEN
3-20 MHz Crystal
MOSCXTCNT
Main Clock
MOSCXTEN
MOSCXTEN
Frequency
3-20 MHz
Oscillator
Oscillator
Oscillator
Fast RC
12 MHz
Counter
Crystal
Counter
MOSCRCF
MOSCSEL
MAINRDY
MOSCRCS
MOSCXTS
MOSCSEL
MAINF
1
0
Main Clock
11055B–ATARM–22-Sep-11
MOSCSELS
MAINCK
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