ATSAM3S-EK Atmel, ATSAM3S-EK Datasheet - Page 429
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ATSAM3S-EK
Manufacturer Part Number
ATSAM3S-EK
Description
KIT EVAL FOR ATSAM3S4C
Manufacturer
Atmel
Series
SAM3Sr
Type
MCUr
Specifications of ATSAM3S-EK
Contents
Board, Cables, Power Supply
Silicon Manufacturer
Atmel
Core Architecture
ARM
Core Sub-architecture
Cortex-M3
Kit Contents
Board
Features
TFT Colour LCD Display, SD/MMC Interface
Svhc
No SVHC (15-Dec-2010)
Rohs Compliant
Yes
For Use With/related Products
*
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
ATSAM3S-EK
Manufacturer:
Atmel
Quantity:
135
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- Download datasheet (24Mb)
26. Power Management Controller (PMC)
26.1
26.2
6500C–ATARM–8-Feb-11
Description
Embedded Characteristics
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 Cortex-M3 Processor.
The Supply Controller selects between the 32 kHz RC oscillator or the crystal oscillator. The
unused oscillator is disabled automatically so that power consumption is optimized.
By default, at startup the chip runs out of the Master Clock using the Fast RC oscillator running
at 4 MHz.
The user can trim the 8 and 12 MHz RC Oscillator frequency by software.
The Power Management Controller provides the following clocks:
Programmable Clock Outputs can be selected from the clocks provided by the clock generator
and driven on the PCKx pins.
• MCK, the Master Clock, programmable from a few hundred Hz to the maximum operating
• Processor Clock (HCLK), must be switched off when entering the processor in Sleep Mode.
• Free running processor Clock (FCLK)
• the Cortex-M3 SysTick external clock
• UDP Clock (UDPCK), required by USB Device Port operations.
• Peripheral Clocks, typically MCK, provided to the embedded peripherals (USART, SSC, SPI,
frequency of the device. It is available to the modules running permanently, such as the
Enhanced Embedded Flash Controller.
TWI, TC, HSMCI, 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.
SAM3S Preliminary
429
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