SAM9G20 Atmel Corporation, SAM9G20 Datasheet - Page 312

• Manufacturer Part Number: SAM9G20
• Manufacturer: Atmel Corporation

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

26.9.15
Register Name:PMC_SR
Access Type:Read-only
• MOSCS: Main Oscillator Status
0 = Main oscillator is not stabilized.
1 = Main oscillator is stabilized.
• LOCKA: PLL A Lock Status
0 = PLL A is not locked
1 = PLL A is locked.
• LOCKB: PLL B Lock Status
0 = PLL B is not locked.
1 = PLL B is locked.
• MCKRDY: Master Clock Status
0 = Master Clock is not ready.
1 = Master Clock is ready.
• OSC_SEL: Slow Clock Oscillator Selection
0 = Internal slow clock RC oscillator.
1 = External slow clock 32 kHz oscillator.
• PCKRDYx: Programmable Clock Ready Status
0 = Programmable Clock x is not ready.
1 = Programmable Clock x is ready.
312
OSC_SEL
31
23
15
–
–
7
-
AT91SAM9G20
PMC Status Register
30
22
14
–
–
6
-
-
29
21
13
–
–
5
-
-
28
20
12
–
–
4
-
-
MCKRDY
27
19
11
–
–
3
-
LOCKB
26
18
10
–
–
2
-
PCKRDY1
LOCKA
25
17
–
–
9
1
6384E–ATARM–05-Feb-10
PCKRDY0
MOSCS
24
16
–
–
8
0