SAM9G45 Atmel Corporation, SAM9G45 Datasheet - Page 289

• 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. Clock Generator
24.1
24.2
6438G–ATARM–19-Apr-11
Description
Embedded Characteristics
The Clock Generator User Interface is embedded within the Power Management Controller
Interface and is described in
CKGR_.
The Clock Generator is made up of:
The USB Device and Host HS Clocks are provided by a the dedicated UTMI PLL (UPLL)
embedded in the UTMI macro.
Figure 24-1. Clock Generator Block Diagram
• One Low Power 32768 Hz Slow Clock Oscillator with bypass mode
• One Low-Power RC oscillator
• One 12 MHz Main Oscillator, which can be bypassed
• One 400 to 800 MHz programmable PLLA, capable to provide the clock MCK to the
processor and to the peripherals. This PLL has an input divider to offer a wider range of
output frequencies from the 12 MHz input, the only limitation being the lowest input frequency
shall be higher or equal to 2 MHz.
XOUT32
XIN32
XOUT
XIN
Section
25.12. However, the Clock Generator registers are named
Clock Generator
Management
12M Main
PLLA and
Slow Clock
Controller
On Chip
RC OSC
Oscillator
Status
Oscillator
Divider
Power
UPLL
Control
RCEN
Slow Clock
SLCK
OSCSEL
OSC32EN
OSC32BYP
Main Clock
MAINCK
UPLLCK
PLLA Clock
PLLACK
SAM9G45
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