SAM9G10 Atmel Corporation, SAM9G10 Datasheet - Page 178

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SAM9G10

Manufacturer Part Number
SAM9G10
Description
Manufacturer
Atmel Corporation
Datasheets

Specifications of SAM9G10

Flash (kbytes)
0 Kbytes
Pin Count
217
Max. Operating Frequency
266 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
4
Ssc
3
Sd / Emmc
1
Graphic Lcd
Yes
Video Decoder
No
Camera Interface
No
Resistive Touch Screen
No
Temp. Sensor
No
Crypto Engine
No
Sram (kbytes)
16
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)
1.08 to 1.32
Fpu
No
Mpu / Mmu
No/Yes
Timers
3
Output Compare Channels
3
Input Capture Channels
3
32khz Rtc
Yes
Calibrated Rc Oscillator
No
21.5
21.6
178
Main Clock
Main Clock Selection
SAM9G35
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
11053B–ATARM–22-Sep-11
MOSCSELS
MAINCK

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