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Board Description
– Power Optimization Capabilities, Including Slow Clock Mode (Down to 500 Hz)
and Idle Mode
– Three Programmable External Clock Signals
3-2
6241B–ATARM–22-Mar-07
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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)
– Two-wire UART and Support for Debug Communication Channel interrupt,
Programmable ICE Access Prevention
Periodic Interval Timer (PIT)
– 20-bit Programmable Counter plus 12-bit Interval Counter
Windowed Watchdog (WDT)
– 12-bit key-protected Programmable Counter
– Provides Reset or Interrupt Signals to the System
– Counter May Be Stopped While the Processor is in Debug State or in Idle Mode
Real-time Timer (RTT)
– 32-bit Free-running Counter with Alarm
– Runs Off the Internal RC Oscillator
Three Parallel Input/Output Controllers (PIO)
– Eighty-eight 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
– Schmitt Trigger on All inputs
Eleven Peripheral DMA Controller (PDC) Channels
One USB 2.0 Full Speed (12 Mbits per second) Device Port
– On-chip Transceiver, Eight Endpoints, 2688-byte Configurable Integrated FIFOs
One Synchronous Serial Controller (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
Two Universal Synchronous/Asynchronous Receiver Transmitters (USART)
– Individual Baud Rate Generator, IrDA ? Infrared Modulation/Demodulation
– Support for ISO7816 T0/T1 Smart Card, Hardware Handshaking, RS485 Support
– Full Modem Line Support on USART1
One Master/Slave Serial Peripheral Interfaces (SPI)
– 8- to 16-bit Programmable Data Length, Four External Peripheral Chip Selects
One Three-channel 16-bit Timer/Counter (TC)
– Three External Clock Inputs, Two Multi-purpose I/O Pins per Channel
– Double PWM Generation, Capture/Waveform Mode, Up/Down Capability
One Four-channel 16-bit PWM Controller (PWMC)
One Two-wire Interface (TWI)
– Master, Multi-Master and Slave Mode Support, All Two-wire Atmel EEPROMs
Supported
– General Call Supported in Slave Mode
One 8-channel 10-bit Analog-to-Digital Converter, Four Channels Multiplexed with
Digital I/Os
SAM-BA ?
– Default Boot program
– Interface with SAM-BA Graphic User Interface
AT91SAM7SE-EK Evaluation Board User Guide
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