ATSAM3U-EK Atmel, ATSAM3U-EK Datasheet - Page 41

• Manufacturer Part Number: ATSAM3U-EK
• Description: KIT EVAL FOR AT91SAM3U CORTEX
• Manufacturer: Atmel
• Type: MCUr

Specifications of ATSAM3U-EK

• Contents: Board
• Processor To Be Evaluated: SAM3U
• Data Bus Width: 32 bit
• Interface Type: RS-232, USB
• Operating Supply Voltage: 3 V
• Silicon Manufacturer: Atmel
• Core Architecture: ARM
• Core Sub-architecture: Cortex - M3
• Silicon Core Number: SAM3U4E
• Silicon Family Name: SAM3U
• Kit Contents: Board CD Docs
• Rohs Compliant: Yes
• For Use With/related Products: AT91SAM3U
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

10.7
10.8
10.9
10.10 Real-time Clock
10.11 General-Purpose Back-up Registers
10.12 Nested Vectored Interrupt Controller
6430D–ATARM–25-Mar-11
Watchdog Timer
SysTick Timer
Real-time Timer
• 16-bit key-protected once-only Programmable Counter
• Windowed, prevents the processor to be in a dead-lock on the watchdog access
• 24-bit down counter
• Self-reload capability
• Flexible system timer
• Real-time Timer, allowing backup of time with different accuracies
• Low power consumption
• Full asynchronous design
• Two hundred year calendar
• Programmable Periodic Interrupt
• Alarm and update parallel load
• Control of alarm and update Time/Calendar Data In
• Eight 32-bit general-purpose backup registers
• Thirty maskable interrupts
• Sixteen priority levels
• Dynamic reprioritization of interrupts
• Priority grouping
• Support for tail-chaining and late arrival of interrupts.
• Processor state automatically saved on interrupt entry, and restored on
– 32-bit Free-running back-up Counter
– Integrates a 16-bit programmable prescaler running on slow clock
– Alarm Register capable to generate a wake-up of the system
– selection of preempting interrupt levels and non preempting interrupt levels.
– back-to-back interrupt processing without the overhead of state saving and
– interrupt exit, with no instruction overhead.
restoration between interrupts.
SAM3U Series
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