AT91SAM9G45-EKES Atmel, AT91SAM9G45-EKES Datasheet - Page 34

KIT EVAL FOR AT91SAM9G45

AT91SAM9G45-EKES

Manufacturer Part Number
AT91SAM9G45-EKES
Description
KIT EVAL FOR AT91SAM9G45
Manufacturer
Atmel
Series
AT91SAM Smart ARMr
Type
MCUr

Specifications of AT91SAM9G45-EKES

Contents
Board
Processor To Be Evaluated
SAM9G45
Data Bus Width
32 bit
Interface Type
I2C, SPI, UART
Maximum Operating Temperature
+ 50 C
Minimum Operating Temperature
- 10 C
Operating Supply Voltage
1.8 V to 3.3 V
For Use With/related Products
AT91SAM9G45
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
Q4626953
8.7
34
Power Management Controller
AT91SAM9G45
The Power Management Controller provides all the clock signals to the system.
PMC input clocks:
PMC output clocks
Note:
This allows the software control of five flexible operating modes:
• Switch from 32768 Hz oscillator to internal RC oscilllator by setting the bit OSCSEL to 0.
• Wait 5 slow clock cycles for internal resynchronization.
• Disable the 32768Hz oscillator by setting the bit OSC32EN to 0.
• UPLLCK: From UTMI PLL
• PLLACK From PLLA
• SLCK: slow clock from OSC32K or internal RC OSC
• MAINCK: from 12 MHz external oscillator
• Processor Clock PCK
• Master Clock MCK, in particular to the Matrix and the memory interfaces. The divider can be
• DDR system clock equal to 2xMCK
• USB Host EHCI High speed clock (UPLLCK)
• USB OHCI clocks (UHP48M and UHP12M)
• Independent peripheral clocks, typically at the frequency of MCK
• Two programmable clock outputs: PCK0 and PCK1
• 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, processor
• Backup Mode, Main Power Supplies off, VDDBU powered by a battery
1,2,3 or 4
stopped waiting for an interrupt
DDR system clock is not available when Master Clock (MCK) equals Processor Clock (PCK).
6438ES–ATARM–21-Jun-10

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