– Clock Generator and Power Management Controller
– Advanced Interrupt Controller and Debug Unit
– Periodic Interval Timer, Watchdog Timer and Real-time Timer
– Three 32-bit PIO Controllers
Reset Controller (RSTC)
– Based on Power-on Reset Cells, Reset Source Identification and Reset Output Control
Shutdown Controller (SHDWC)
– Programmable Shutdown Pin Control and Wake-up Circuitry
Clock Generator (CKGR)
– 32.768 kHz Low-power Oscillator on Battery Backup Power Supply, Providing a Permanent Slow
Clock
– 3 to 20 MHz On-chip Oscillator and two PLLs
Power Management Controller (PMC)
– Very Slow Clock Operating Mode, Software Programmable Power Optimization Capabilities
– Four Programmable External Clock Signals
Advanced Interrupt Controller (AIC)
– Individually Maskable, Eight-level Priority, Vectored Interrupt Sources
– Three External Interrupt Sources and One Fast Interrupt Source, Spurious Interrupt Protected
Debug Unit (DBGU)
– 2-wire USART and Support for Debug Communication Channel, Programmable ICE Access
Prevention
Periodic Interval Timer (PIT)
– 20-bit Interval Timer plus 12-bit Interval Counter
Watchdog Timer (WDT)
– Key Protected, Programmable Only Once, Windowed 12-bit Counter, Running at Slow Clock
Real-Time Timer (RTT)
– 32-bit Free-running Backup Counter Running at Slow Clock
Three 32-bit Parallel Input/Output Controllers (PIO) PIOA, PIOB and PIOC
– 96 Programmable I/O Lines Multiplexed with up to Two Peripheral I/Os
– Input Change Interrupt Capability on Each I/O Line
– Individually Programmable Open-drain, Pull-up Resistor and Synchronous Output
Nineteen Peripheral DMA (PDC) Channels
Multimedia Card Interface (MCI)
– Compliant with Multimedia Cards and SDCards
– Automatic Protocol Control and Fast Automatic Data Transfers with PDC, MMC and SDCard
Compliant
Three Synchronous Serial Controllers (SSC)
– Independent Clock and Frame Sync Signals for Each Receiver and Transmitter
– I2S Analog Interface Support, Time Division Multiplex Support
– High-speed Continuous Data Stream Capabilities with 32-bit Data Transfer
Three Universal Synchronous/Asynchronous Receiver Transmitters (USART)
– Individual Baud Rate Generator, IrDA ? Infrared Modulation/Demodulation
3-2
6479A–ATARM–26-May-09
AT91SAM9G10-EK Evaluation Board User Guide
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