T32UC3L0128_14 datasheet, PDF - EEWORLD Datasheet

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T32UC3L0128_14: DescriptionCompact Single-cycle RISC Instruction Set Including DSP Instructions; File Size5MB，852 Pages; ManufacturerAtmel (Microchip)

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T32UC3L0128_14 Overview

Compact Single-cycle RISC Instruction Set Including DSP Instructions

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Features

•

High-performance, Low-power 32-bit Atmel

AVR

Microcontroller

– Compact Single-cycle RISC Instruction Set Including DSP Instructions

– Read-modify-write Instructions and Atomic Bit Manipulation

– Performance

• Up to 64DMIPS Running at 50MHz from Flash (1 Flash Wait State)

• Up to 36DMIPS Running at 25MHz from Flash (0 Flash Wait State)

– Memory Protection Unit (MPU)

• Secure Access Unit (SAU) providing User-defined Peripheral Protection

picoPower

Technology for Ultra-low Power Consumption

Multi-hierarchy Bus System

– High-performance Data Transfers on Separate Buses for Increased Performance

– 12 Peripheral DMA Channels Improve Speed for Peripheral Communication

Internal High-speed Flash

– 256Kbytes and 128Kbytes Versions

– Single-cycle Access up to 25MHz

– FlashVault Technology Allows Pre-programmed Secure Library Support for End

User Applications

– Prefetch Buffer Optimizing Instruction Execution at Maximum Speed

– 100,000 Write Cycles, 15-year Data Retention Capability

– Flash Security Locks and User-defined Configuration Area

Internal High-speed SRAM, Single-cycle Access at Full Speed

– 32Kbytes

Interrupt Controller (INTC)

– Autovectored Low-latency Interrupt Service with Programmable Priority

External Interrupt Controller (EIC)

Peripheral Event System for Direct Peripheral to Peripheral Communication

System Functions

– Power and Clock Manager

– SleepWalking Power Saving Control

– Internal System RC Oscillator (RCSYS)

– 32 KHz Oscillator

– Multipurpose Oscillator, Phase Locked Loop (PLL), and Digital Frequency Locked

Loop (DFLL)

Windowed Watchdog Timer (WDT)

Asynchronous Timer (AST) with Real-time Clock Capability

– Counter or Calendar Mode Supported

Frequency Meter (FREQM) for Accurate Measuring of Clock Frequency

Six 16-bit Timer/Counter (TC) Channels

– External Clock Inputs, PWM, Capture, and Various Counting Capabilities

PWM Channels on All I/O Pins (PWMA)

– 8-bit PWM with a Source Clock up to 150MHz

Four Universal Synchronous/Asynchronous Receiver/Transmitters (USART)

– Independent Baudrate Generator, Support for SPI

– Support for Hardware Handshaking

One Master/Slave Serial Peripheral Interface (SPI) with Chip Select Signals

– Up to 15 SPI Slaves can be Addressed

•

32-bit Atmel

AVR

Microcontroller

AT32UC3L0256

AT32UC3L0128

•

32145C–06/2013

AT32UC3L0128/256

1. Description

The Atmel

AVR

AT32UC3L0128/256 is a complete system-on-chip microcontroller based on

the AVR32 UC RISC processor running at frequencies up to 50MHz. AVR32 UC is a high-per-

formance 32-bit RISC microprocessor core, designed for cost-sensitive embedded applications,

with particular emphasis on low power consumption, high code density, and high performance.

The processor implements a Memory Protection Unit (MPU) and a fast and flexible interrupt con-

troller for supporting modern and real-time operating systems. The Secure Access Unit (SAU) is

used together with the MPU to provide the required security and integrity.

Higher computation capability is achieved using a rich set of DSP instructions.

The AT32UC3L0128/256 embeds state-of-the-art picoPower technology for ultra-low power con-

sumption. Combined power control techniques are used to bring active current consumption

down to 174µA/MHz, and leakage down to 220nA while still retaining a bank of backup regis-

ters. The device allows a wide range of trade-offs between functionality and power consumption,

giving the user the ability to reach the lowest possible power consumption with the feature set

required for the application.

The Peripheral Direct Memory Access (DMA) controller enables data transfers between periph-

erals and memories without processor involvement. The Peripheral DMA controller drastically

reduces processing overhead when transferring continuous and large data streams.

The AT32UC3L0128/256 incorporates on-chip Flash and SRAM memories for secure and fast

access. The FlashVault technology allows secure libraries to be programmed into the device.

The secure libraries can be executed while the CPU is in Secure State, but not read by non-

secure software in the device. The device can thus be shipped to end customers, who will be

able to program their own code into the device to access the secure libraries, but without risk of

compromising the proprietary secure code.

The External Interrupt Controller (EIC) allows pins to be configured as external interrupts. Each

external interrupt has its own interrupt request and can be individually masked.

The Peripheral Event System allows peripherals to receive, react to, and send peripheral events

without CPU intervention. Asynchronous interrupts allow advanced peripheral operation in low

power sleep modes.

The Power Manager (PM) improves design flexibility and security. The Power Manager supports

SleepWalking functionality, by which a module can be selectively activated based on peripheral

events, even in sleep modes where the module clock is stopped. Power monitoring is supported

by on-chip Power-on Reset (POR), Brown-out Detector (BOD), and Supply Monitor (SM). The

device features several oscillators, such as Phase Locked Loop (PLL), Digital Frequency

Locked Loop (DFLL), Oscillator 0 (OSC0), and system RC oscillator (RCSYS). Either of these

oscillators can be used as source for the system clock. The DFLL is a programmable internal

oscillator from 20 to 150MHz. It can be tuned to a high accuracy if an accurate reference clock is

running, e.g. the 32KHz crystal oscillator.

The Watchdog Timer (WDT) will reset the device unless it is periodically serviced by the soft-

ware. This allows the device to recover from a condition that has caused the system to be

unstable.

The Asynchronous Timer (AST) combined with the 32KHz crystal oscillator supports powerful

real-time clock capabilities, with a maximum timeout of up to 136 years. The AST can operate in

counter mode or calendar mode.

32145C–06/2013

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.

32145C–06/2013

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