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AT32UC3L0256-ZAUR Datasheet(PDF) 4 Page - ATMEL Corporation |
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AT32UC3L0256-ZAUR Datasheet(HTML) 4 Page - ATMEL Corporation |
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4 / 96 page  4 32145BS–01/2012 AT32UC3L0128/256 The Frequency Meter (FREQM) allows accurate measuring of a clock frequency by comparing it to a known reference clock. The device includes six identical 16-bit Timer/Counter (TC) channels. Each channel can be inde- pendently programmed to perform frequency measurement, event counting, interval measurement, pulse generation, delay timing, and pulse width modulation. The Pulse Width Modulation controller (PWMA) provides 8-bit PWM channels which can be syn- chronized and controlled from a common timer. One PWM channel is available for each I/O pin on the device, enabling applications that require multiple PWM outputs, such as LCD backlight control. The PWM channels can operate independently, with duty cycles set individually, or in interlinked mode, with multiple channels changed at the same time. The AT32UC3L0128/256 also features many communication interfaces, like USART, SPI, and TWI, for communication intensive applications. The USART supports different communication modes, like SPI Mode and LIN Mode. A general purpose 8-channel ADC is provided, as well as eight analog comparators (AC). The ADC can operate in 10-bit mode at full speed or in enhanced mode at reduced speed, offering up to 12-bit resolution. The ADC also provides an internal temperature sensor input channel. The analog comparators can be paired to detect when the sensing voltage is within or outside the defined reference window. The Capacitive Touch (CAT) module senses touch on external capacitive touch sensors, using the QTouch technology. Capacitive touch sensors use no external mechanical components, unlike normal push buttons, and therefore demand less maintenance in the user application. The CAT module allows up to 17 touch sensors, or up to 16 by 8 matrix sensors to be interfaced. All touch sensors can be configured to operate autonomously without software interaction, allowing wakeup from sleep modes when activated. Atmel offers the QTouch library for embedding capacitive touch buttons, sliders, and wheels functionality into AVR microcontrollers. The patented charge-transfer signal acquisition offers robust sensing and includes fully debounced reporting of touch keys as well as Adjacent Key Suppression® (AKS®) technology for unambiguous detection of key events. The easy-to-use QTouch Suite toolchain allows you to explore, develop, and debug your own touch applications. The AT32UC3L0128/256 integrates a class 2+ Nexus 2.0 On-chip Debug (OCD) System, with non-intrusive real-time trace and full-speed read/write memory access, in addition to basic run- time control. The NanoTrace interface enables trace feature for aWire- or JTAG-based debuggers. The single-pin aWire interface allows all features available through the JTAG inter- face to be accessed through the RESET pin, allowing the JTAG pins to be used for GPIO or peripherals. |
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