Board Description
USB 2.0 Full Speed (12 Mbits per second) Host Double Port
– Dual On-chip Transceivers
– Integrated FIFOs and Dedicated DMA Channels
USB 2.0 Full Speed (12 Mbits per second) Device Port
– On-chip Transceiver, 2,432-byte Configurable Integrated DPRAM
Ethernet MAC 10/100 Base-T
– Media Independent Interface or Reduced Media Independent Interface
– 28-byte FIFOs and Dedicated DMA Channels for Receive and Transmit
Fully-featured System Controller, including
– Reset Controller, Shutdown Controller
– Twenty 32-bit Battery Backup Registers for a Total of 80 Bytes
– Clock Generator and Power Management Controller
– Advanced Interrupt Controller and Debug Unit
– Periodic Interval Timer, Watchdog Timer and Double Real-time Timer
Reset Controller (RSTC)
– Based on Two 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)
– 32768Hz Low-power Oscillator on Battery Backup Power Supply, Providing a Permanent Slow
Clock
– 3 to 20 MHz On-chip Oscillator and Two Up to 240 MHz 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
– Two External Interrupt Sources and One Fast Interrupt Source, Spurious Interrupt Protected
Debug Unit (DBGU)
– 2-wire UART 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 16-bit Counter Running at Slow Clock
Two Real-time Timers (RTT)
– 32-bit Free-running Backup Counter Running at Slow Clock with 16-bit Prescaler
Five 32-bit Parallel Input/Output Controllers (PIOA, PIOB, PIOC, PIOD and PIOE)
– 160 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
One Part 2.0A and Part 2.0B-compliant CAN Controller
3-2
6325D–ATARM–26-Aug-09
AT91SAM9263-EK Evaluation Board User Guide
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