PCINT15 datasheet, PDF - EEWORLD Datasheet

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PCINT15: DescriptionHigh Performance, Low Power Atmel AVR 8-bit Microcontroller Advanced RISC Architecture; File Size4MB，294 Pages; ManufacturerAtmel (Microchip)

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PCINT15 Overview

High Performance, Low Power Atmel AVR 8-bit Microcontroller Advanced RISC Architecture

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Features

•

High Performance, Low Power Atmel AVR 8-bit Microcontroller

•

Advanced RISC Architecture

– 123 Powerful Instructions - Most Single Clock Cycle Execution

– 32 x 8 General Purpose Working Registers

– Fully Static Operation

•

Non-volatile Program and Data Memories

– 16Kbyte of In-system Programmable (ISP) Program Memory Flash

• Endurance: 10,000 Write/Erase Cycles

– 512Bytes In-system Programmable EEPROM

• Endurance: 100,000 Write/Erase Cycles

– 512Bytes Internal SRAM

– Programming Lock for Self-programming Flash Program and EEPROM Data

Security

– Low Size LIN/UART Software In-system Programmable

•

Peripheral Features

– LF-RFID Reader/Writer Front End

• Carrier Frequency f

OSC

= 100kHz to 150kHz

• Typical Data Rate up to 5Kbaud at 125kHz

• Suitable for Manchester anf Biphase Modulation

• Does not Require an External Crystal

• Power Supply from the Car Battery or from 5V Regulated Voltage

• Optimized for Car Immobilizer Applications

• Tuning Capability

– LIN 2.1 and 1.3 Controller or 8-bit UART

– 8-bit Asynchronous Timer/Counter 0:

• 10-bit Clock Prescaler

• 1 Output Compare or 8-bit PWM Channel

– 16-bit Synchronous Timer/Counter 1:

• 10-bit Clock Prescaler

• External Event Counter

• 2 Output Compares Units or 16-bit PWM Channels each Driving up to 4 Output

Pins

– Master/Slave SPI Serial Interface

– Universal Serial Interface (USI) with Start Condition Detector (Master/Slave SPI,

TWI, ...)

– 10-bit ADC:

• 11 Single-ended Channels

• 8 Differential ADC Channel Pairs with Programmable Gain (8x or 20x)

– On-chip Analog Comparator with Selectable Voltage Reference

– 100µA ±10% Current Source (LIN Node Identification)

– On-chip Temperature Sensor

– Programmable Watchdog Timer with Separate On-chip Oscillator

125kHz LF

Reader/Writer

with Integrated

Atmel AVR

Microcontroller

Atmel ATA5505

Preliminary

9219A–RFID–01/11

Atmel ATA5505 [Preliminary]

1. Description

The Atmel

ATA5505 is an Atmel AVR

microcontroller with LF-RFID reader/writer front end

and LIN interface for low cost network applications.

The Atmel ATA5505 incorporates the energy-transfer circuit for supplying the transponder. It

consists of an on-chip power supply, an oscillator, and a coil driver optimized for automo-

tive-specific distances. It also includes all signal-processing circuits which are necessary to

transform the small input signal into a microcontroller-compatible signal.

The Atmel ATA5505 integrates a low-power CMOS 8-bit microcontroller based on the Atmel

AVR enhanced RISC architecture. By executing powerful instructions in a single clock cycle,

the ATA5505 achieves throughputs approaching 1 MIPS per MHz, allowing the system

designer to optimize power consumption versus processing speed.

The Atmel AVR core combines a rich instruction set with 32 general purpose working regis-

ters. All the 32 registers are directly connected to the Arithmetic Logic Unit (ALU), allowing two

independent registers to be accessed in a single instruction executed in one clock cycle. The

resulting architecture is more code-efficient while achieving throughputs up to ten times faster

than conventional CISC microcontrollers.

The Atmel ATA5505 provides the following features: 16K byte of in-system programmable

Flash, 512bytes EEPROM, 512bytes SRAM, 16 general purpose I/O lines, 32 general purpose

working registers, one 8-bit timer/counter with compare modes, one 8-bit high speed

timer/counter, a universal serial interface, a LIN controller, internal and external interrupts, an

11-channel, 10-bit ADC, a programmable watchdog timer with internal oscillator, and three

software selectable power saving modes. The Idle mode stops the CPU while allowing the

SRAM, timer/counter, ADC, analog comparator, and interrupt system to continue functioning.

Power-down mode saves the register contents, disabling all chip functions until the next inter-

rupt or hardware reset. To minimize switching noise during ADC conversions, ADC noise

reduction mode stops the CPU and all I/O modules except ADC,

The device is manufactured using Atmel’s high-density non-volatile memory technology. The

on-chip ISP Flash allows the program memory to be re-programmed in-system via an SPI

serial interface, by a conventional non-volatile memory programmer or by an on-chip boot

code running on the Atmel AVR core. The boot program can use any interface to download the

application program in the Flash memory. By combining an 8-bit RISC CPU with in-system

self-programmable Flash on a monolithic chip, the Atmel ATA5505 is a powerful microcon-

troller providing a highly flexible and cost-effective solution to many embedded control

applications.

The Atmel ATA5505 AVR is supported with a full suite of program and system development

tools including: C compilers, macro assemblers, program debuggers/simulators, in-circuit

emulators, and evaluation kits.

9219A–RFID–01/11

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