SAM9XE512 Atmel Corporation, SAM9XE512 Datasheet - Page 320

• Manufacturer Part Number: SAM9XE512
• Manufacturer: Atmel Corporation

Specifications of SAM9XE512

• Flash (kbytes): 512 Kbytes
• Pin Count: 217
• Max. Operating Frequency: 180 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): 2
• Uart: 6
• 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): 312
• 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): 1.65 to 1.95
• Fpu: No
• Mpu / Mmu: No / Yes
• Timers: 6
• Output Compare Channels: 6
• Input Capture Channels: 6
• 32khz Rtc: Yes
• Calibrated Rc Oscillator: No

28. Power Management Controller (PMC)
28.1
6254C–ATARM–22-Jan-10
Description
The Power Management Controller (PMC) optimizes power consumption by controlling all sys-
tem and user peripheral clocks. The PMC enables/disables the clock inputs to many of the
peripherals and the ARM Processor.
The Power Management Controller provides the following clocks:
Figure 28-1. AT91SAM9XE128/256/512 Power Management Controller Block Diagram
• MCK, the Master Clock, programmable from a few hundred Hz to the maximum operating
• Processor Clock (PCK), must be switched off when entering processor in Idle Mode.
• Peripheral Clocks, typically MCK, provided to the embedded peripherals (USART, SSC, SPI,
• UHP Clock (UHPCK), required by USB Host Port operations.
• Programmable Clock Outputs can be selected from the clocks provided by the clock
• Five flexible operating modes:
frequency of the device. It is available to the modules running permanently, such as the AIC
and the Memory Controller.
TWI, TC, MCI, etc.) and independently controllable. In order to reduce the number of clock
names in a product, the Peripheral Clocks are named MCK in the product datasheet.
generator and driven on the PCKx pins.
– Normal Mode, processor and peripherals running at a programmable frequency
– Idle Mode, processor stopped waiting for an interrupt
– Slow Clock Mode, processor and peripherals running at low frequency
– Standby Mode, mix of Idle and Backup Mode, peripheral running at low frequency,
– Backup Mode, Main Power Supplies off, VDDBU powered by a battery
processor stopped waiting for an interrupt
PLLBCK
MAINCK
PLLACK
SLCK
Master Clock Controller
AT91SAM9XE128/256/512 Preliminary
/1,/2,/4,...,/64
Prescaler
MAINCK
PLLBCK
PLLACK
PLLBCK
SLCK
Programmable Clock Controller
Divider
/1,/2,/4
USB Clock Controller
Divider
/1,/2,/4
/1,/2,/4,...,/64
Prescaler
Clock Controller
Processor
Controller
ON/OFF
Idle Mode
ON/OFF
Clock
Peripherals
ON/OFF
PCK
int
MCK
periph_clk[..]
pck[..]
UDPCK
UHPCK
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