SAM9261 Atmel Corporation, SAM9261 Datasheet - Page 25

• Manufacturer Part Number: SAM9261
• Manufacturer: Atmel Corporation

Specifications of SAM9261

• Flash (kbytes): 0 Kbytes
• Pin Count: 217
• Max. Operating Frequency: 240 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): 1
• Uart: 4
• Ssc: 3
• Sd / Emmc: 1
• Graphic Lcd: Yes
• Video Decoder: No
• Camera Interface: No
• Resistive Touch Screen: No
• Temp. Sensor: No
• Crypto Engine: No
• Sram (kbytes): 160
• 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): 1.08 to 1.32
• Fpu: No
• Mpu / Mmu: No/Yes
• Timers: 3
• Output Compare Channels: 3
• Input Capture Channels: 3
• 32khz Rtc: Yes
• Calibrated Rc Oscillator: No

9.6
9.7
9.8
9.9
6062LS–ATARM–23-Mar-09
Power Management Controller
Periodic Interval Timer
Watchdog Timer
Real-time Timer
Figure 9-3.
• The Power Management Controller provides:
• Includes a 20-bit Periodic Counter with less than 1 µs accuracy
• Includes a 12-bit Interval Overlay Counter
• Real time OS or Linux
• 12-bit key-protected only-once programmable counter
• Windowed, prevents the processor to be in a dead-lock on the watchdog access
• 32-bit Free-running backup counter
• Alarm Register capable to generate a wake-up of the system
– the Processor Clock PCK
– the Master Clock MCK
– the USB Clock USBCK (HCK0)
– the LCD Controller Clock LCDCK (HCK1)
– up to thirty peripheral clocks
– four programmable clock outputs: PCK0 to PCK3
PLLBCK
MAINCK
PLLACK
SLCK
Power Management Controller Block Diagram
Master Clock Controller
/1,/2,/4,...,/64
®
Prescaler
/WindowsCE
MAINCK
PLLBCK
PLLACK
SLCK
PLLBCK
Programmable Clock Controller
®
Divider
/1,/2,/4
compliant tick generator
USB Clock Controller
/1,/2,/4,...,/64
Prescaler
ON/OFF
Divider
/1,/2,/4
APB Peripherals
AHB Peripherals
Clock Controller
Clock Controller
Processor
Controller
Idle Mode
Clock
ON/OFF
ON/OFF
AT91SAM9261
PCK
int
MCK
periph_clk[2..21]
HCKx
pck[0..3]
usb_suspend
UDPCK
UHPCK
25