AT91SAM_14 datasheet(2/50 Pages) ATMEL

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SAM7S Series [DATASHEET]

6175KS–ATARM–25-Oct-12

• Debug Unit (DBGU)

– 2-wire UART and Support for Debug Communication Channel interrupt, Programmable ICE Access Prevention

– Mode for General Purpose 2-wire UART Serial Communication

• 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

• One Parallel Input/Output Controller (PIOA)

– Thirty-two (SAM7S512/256/128/64/321/161) or twenty-one (SAM7S32/16) 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

• Eleven (SAM7S512/256/128/64/321/161) or Nine (SAM7S32/16) Peripheral DMA Controller (PDC) Channels

• One USB 2.0 Full Speed (12 Mbits per Second) Device Port (Except for the SAM7S32/16).

– On-chip Transceiver, 328-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 (SAM7S512/256/128/64/321/161) or One (SAM7S32/16) 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 (SAM7S512/256/128/64/321/161)

• One Master/Slave Serial Peripheral Interface (SPI)

– 8- to 16-bit Programmable Data Length, Four External Peripheral Chip Selects

• One Three-channel 16-bit Timer/Counter (TC)

– Three External Clock Input and Two Multi-purpose I/O Pins per Channel (SAM7S512/256/128/64/321/161)

– One External Clock Input and Two Multi-purpose I/O Pins for the first Two Channels Only (SAM7S32/16)

– Double PWM Generation, Capture/Waveform Mode, Up/Down Capability

• One Four-channel 16-bit PWM Controller (PWMC)

• One Two-wire Interface (TWI)

– Master Mode Support Only, All Two-wire Atmel EEPROMs and I2C Compatible Devices Supported

(SAM7S512/256/128/64/321/32)

– Master, Multi-Master and Slave Mode Support, All Two-wire Atmel EEPROMs and I2C Compatible Devices Supported

(SAM7S161/16)

• One 8-channel 10-bit Analog-to-Digital Converter, Four Channels Multiplexed with Digital I/Os

• SAM-BA™ Boot Assistant

– Default Boot program

– Interface with SAM-BA Graphic User Interface

• IEEE® 1149.1 JTAG Boundary Scan on All Digital Pins

• 5V-tolerant I/Os, including Four High-current Drive I/O lines, Up to 16 mA Each (SAM7S161/16 I/Os Not 5V-tolerant)

• Power Supplies

– Embedded 1.8V Regulator, Drawing up to 100 mA for the Core and External Components

– 3.3V or 1.8V VDDIO I/O Lines Power Supply, Independent 3.3V VDDFLASH Flash Power Supply

– 1.8V VDDCORE Core Power Supply with Brown-out Detector

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