AT91SAM9260-EK Atmel, AT91SAM9260-EK Datasheet - Page 29

• Manufacturer Part Number: AT91SAM9260-EK
• Description: KIT EVAL FOR AT91SAM9260
• Manufacturer: Atmel
• Series: AT91SAM Smart ARMr
• Type: MCUr

Specifications of AT91SAM9260-EK

• Contents: Evaluation Board, Parallel Cable and CD-ROM
• Processor To Be Evaluated: AT91SAM9260
• Data Bus Width: 32 bit
• Interface Type: RS-232, Ethernet, USB
• Core: ARM 9
• Silicon Manufacturer: Atmel
• Core Architecture: ARM
• Core Sub-architecture: ARM926EJ-S
• Silicon Core Number: AT91SAM9260
• Silicon Family Name: ARM
• Kit Contents: Board, Cables, CD, Power Supply
• Rohs Compliant: Yes
• For Use With/related Products: AT91SAM9260
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

9.6
9.7
9.8
9.9
9.10
6221JS–ATARM–17-Jul-09
Periodic Interval Timer
Watchdog Timer
Real-time Timer
General-purpose Back-up Registers
Advanced Interrupt Controller
Figure 9-3.
• Includes a 20-bit Periodic Counter, with less than 1 µs accuracy
• Includes a 12-bit Interval Overlay Counter
• Real Time OS or Linux
• 16-bit key-protected only-once-Programmable Counter
• Windowed, prevents the processor being in a dead-lock on the watchdog access
• Four 32-bit backup general-purpose registers
• Controls the interrupt lines (nIRQ and nFIQ) of the ARM Processor
• Thirty-two individually maskable and vectored interrupt sources
– Real-time Timer 32-bit free-running back-up Counter
– Integrates a 16-bit programmable prescaler running on slow clock
– Alarm Register capable of generating a wake-up of the system through the
– Source 0 is reserved for the Fast Interrupt Input (FIQ)
– Source 1 is reserved for system peripherals (PIT, RTT, PMC, DBGU, etc.)
Shutdown Controller
PLLACK
PLLBCK
MAINCK
SLCK
AT91SAM9260 Power Management Controller Block Diagram
Master Clock Controller
/1,/2,/4,...,/64
®
Prescaler
/Windows CE
MAINCK
PLLACK
PLLBCK
PLLBCK
SLCK
Programmable Clock Controller
®
Divider
/1,/2,/4
compliant tick generator
USB Clock Controller
Divider
/1,/2,/4
/1,/2,/4,...,/64
Prescaler
Clock Controller
Processor
Controller
Idle Mode
ON/OFF
ON/OFF
Clock
Peripherals
ON/OFF
AT91SAM9260
PCK
int
MCK
periph_clk[..]
pck[..]
UDPCK
UHPCK
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