science

XC800 family

XC800 family is a science topic covered in the lgStudy science library. This page brings together a partial reference excerpt, illustrations, worked examples, real-world applications and a short study plan, so you can understand XC800 family rather than just read about it. In short: The Infineon XC800 family is an 8-bit microcontroller family, first introduced in 2005, with a dual cycle optimized 8051 "E-Warp" core. The XC800 family is divided into two categories, the A-Family for Automotive and the I-Family for Industrial and multi-market applications.

Key takeaways

XC800 family belongs to science; place it in that map before memorising details.
Learn the definition first, then one example that makes the definition concrete.
Connect XC800 family to a quantity you can measure, compute or draw — that is where exam questions come from.
Reproduce the core statement of XC800 family from memory before moving on to harder problems.

Reference excerpt

The Infineon XC800 family is an 8-bit microcontroller family, first introduced in 2005, with a dual cycle optimized 8051 "E-Warp" core. The XC800 family is divided into two categories, the A-Family for Automotive and the I-Family for Industrial and multi-market applications.

Applications

Industrial and multimarket The Industrial-Family also called I-Family product series ranges from 2KB to 64KB flash memory and from 16- to 64-pin package options. It can be found in applications like motor control of eBikes, pumps and fans e.g. in air conditioners, as display or touch button controls or in digital controlled power supplies e.g. for motor drives or lighting.

Automotive Automotive devices from the XC800 family can be found in safety and powertrain applications like motorcycle BCM, lighting, window lift, low end airbags, steering angle sensors, pumps, cooling fans and valve/throttle controls. All devices are compliant with the AEC Q100 standards for automotive electronics.

Key features

Core The instruction set consists of 45% one-byte, 41% two-byte and 14% three-byte instructions. Each instruction takes 1, 2 or 4 machine cycles to execute. In case of access to slower memory, the access time may be extended by wait cycles (one wait cycle lasts one machine cycle, which is equivalent to two wait states). The XC800 core supports a range of debugging features including basic stop/start, single-step execution, breakpoint support and read/write access to the data memory, program memory and special function registers. A 16-bit co-processor provides additional computing performance and is optimized for the processing of multiply / divide operations and for the execution of the CORDIC algorithm for trigonometric operations.

Memory organization The 8-bit MCUs have an embedded user-programmable non-volatile flash memory that allows for fast and reliable storage of user code and data. It is operated with a single 2.5 V supply from the embedded voltage regulator (EVR) and does not require additional programming or erasing voltage. The sectorization of the flash memory allows each sector to be erased independently. A flash error correction (ECC) can detect double-bit errors and correct single-bit errors as well as protect against invalid code execution. Up to 3KB of RAM is featured, part of this memory being XRAM.

ADC The analog-to-digital converter module (ADC) uses the successive approximation method to convert analog input values (voltages) to discrete digital values with 10-bit resolution. One ADC kernel (ADC0) operates on a user-selectable number of input channels. The input channels can be selected and arbitrated flexibly.

CCU6 The CCU6 is a capture and compare unit which generates PWM signals over different duty cycles and multiple output channels. It operates with 16-bit timers clocked at 48 MHz and can trigger the ADC operation to harmonize control loops. The CCU6 provides application-specific modes, like for AC drive control or brushless DC-motors using Hall sensors or back-EMF detection. Furthermore, block commutation and control mechanisms for multi-phase machines are supported.

Touch and LED matrix control LEDTSCU is a functional unit for the control of capacitive touch pads and a matrix of LEDs through the same pins. For example, 7 segment displays which are commonly used can be controlled by such a matrix. The principle of time-multiplexed operation of two or more functions, in this case touch control and LED-control, reduces the amount of pins used. The capacitive touch control is adjustable in sensitivity to fit for various cover materials and a ROM library assists the application development.

Communication XC800 features a set of interfaces for serial communication including UART, SPI and I2C as well as CAN connectivity. CAN (Controller Area Network) is a robust serial bus designed for board to board communication in noisy environments such as automobile and industrial control systems. MultiCAN developed by Infineon improves upon previous CAN implementations by adding features such as additional CAN nodes, more message objects linked list management of message objects and support for TTCAN level 2.

Development tools

Evaluation kits Easy Kits and Starter Kits are microcontroller evaluation boards available for all XC800 devices. Application Kits are more application specific kits e.g. for motor control designs. They contain example codes for various control schemes, power boards or motor types and the according hardware.

Free tools DAVE ("Digital Application virtual Engineer") is a free tool to configure low-level drivers and automatically generate source code. DAVE Bench is a free development tool chain from Infineon for the development of application codes based on XC800 microcontrollers. It is an Eclipse based IDE environment for C-code programming. It includes source code management and editing, the Small Device C Compiler (SDCC) (distributed under the GNU General Public License), debugger and flash loading software. DAVE Drive is a free tool for automated motor control generation which generates motor specific control codes like FOC, sinusoidal or block commutation or V/Hz speed control.

Third party tools Keil compiler, debugger, simulator Hitex Debugger

References

External links Infineon MCU Page Infineon 8-Bit MCU Infineon DAVE Bench

Illustrations

Worked examples

Example 1 — a first encounter with XC800 family

Start with the simplest possible case. Write down what XC800 family claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In science, the smallest case is usually a single object, a single equation or a single measurement. Check that every symbol or term in your sentence has a meaning in that case.

Example 2 — changing one variable

Take the situation from Example 1 and change exactly one quantity: double it, halve it, or set it to zero. Predict what should happen to XC800 family before you calculate. Comparing your prediction with the result is the fastest way to find out whether you understand the idea or only the words.

Example 3 — an exam-style question

Typical questions about XC800 family ask you to (a) state it precisely, (b) apply it to given data, and (c) explain a limitation. Practise writing all three answers in under five minutes; the third part is what separates a full-mark answer from an average one.

Applications of XC800 family

In research: XC800 family appears in science research whenever the underlying quantities have to be modelled precisely. Papers usually cite it as a starting assumption and then explore where it breaks down.
In technology and industry: Engineering practice reuses XC800 family in design rules, simulations and safety margins. Knowing the idea lets you read a specification sheet and understand why the numbers look the way they do.
In the classroom: XC800 family is common in secondary-school and first-year university syllabi. It links to neighbouring topics Microcontrollers, so understanding it makes those chapters shorter.
In everyday life: Look for XC800 family outside the textbook — in sport, cooking, traffic, electronics or the sky above you. An example you found yourself is remembered far longer than one you were given.

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How to study XC800 family in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what XC800 family means in your own words.
Compare your version with the excerpt and mark what you missed.
Work through the three examples above with pen and paper.
Explain XC800 family out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is XC800 family in simple terms?

Why does XC800 family matter?

Because it connects several science ideas at once: it gives you a definition you can apply, a quantity you can calculate, and a way to check whether a result is plausible.

How should I study XC800 family?

Read the excerpt, restate it from memory, then work through the examples and applications listed on this page. The five-step study plan above takes about twenty minutes.

What does this page cover?

It gives you a compact reference excerpt plus original lgStudy explanations, examples, applications and study material on XC800 family.