SAM9G45 Atmel Corporation, SAM9G45 Datasheet - Page 295

• Manufacturer Part Number: SAM9G45
• Manufacturer: Atmel Corporation

Specifications of SAM9G45

• Flash (kbytes): 0 Kbytes
• Pin Count: 324
• Max. Operating Frequency: 400 MHz
• Cpu: ARM926
• Hardware Qtouch Acquisition: No
• Max I/o Pins: 160
• Ext Interrupts: 160
• Usb Transceiver: 3
• Usb Speed: Hi-Speed
• Usb Interface: Host, Device
• Spi: 2
• Twi (i2c): 2
• Uart: 5
• Lin: 4
• Ssc: 2
• Ethernet: 1
• Sd / Emmc: 2
• Graphic Lcd: Yes
• Video Decoder: No
• Camera Interface: Yes
• Adc Channels: 8
• Adc Resolution (bits): 10
• Adc Speed (ksps): 440
• Resistive Touch Screen: Yes
• Temp. Sensor: No
• Crypto Engine: No
• Sram (kbytes): 64
• Self Program Memory: NO
• External Bus Interface: 2
• 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

24.8
6438G–ATARM–19-Apr-11
UTMI Bias and Phase Lock Loop Programming
to the processor. The user has to load the number of Slow Clock cycles required to cover the
PLLA transient time into the PLLACOUNT field.
The PLLA clock can be divided by 2 by writing the PLLADIV2 bit in PMC_MCKR register.
The multiplier is built-in to 40 to obtain the USB High Speed 480 MHz.
Whenever the UPLL is enabled by writing UPLLEN in CKGR_UCKR, the LOCKU bit in PMC_SR
is automatically cleared. The values written in the PLLCOUNT field in CKGR_UCKR are loaded
in the UPLL counter. The UPLL counter then decrements at the speed of the Slow Clock divided
by 8 until it reaches 0. At this time, the LOCKU bit is set in PMC_SR and can trigger an interrupt
to the processor. The user has to load the number of Slow Clock cycles required to cover the
UPLL transient time into the PLLCOUNT field. The BIAS, needed for High Speed operations, is
enabled by writing BIASEN in CKGR_UCKR once the PLL locked.
MAINCK
SLCK
PLLCOUNT
UPLLEN
Counter
UPLL
UPLL
LOCKU
UPLLCK
SAM9G45
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