Matrix Orbital PK202-25 User Manual

Page 49

Hexadecimal

Refers to the base-16 number system, which consists

of 16 unique symbols: the numbers 0 to 9 and the let-

ters A to F. For example, the decimal number 15 is

represented as F in the hexadecimal numbering sys-

tem. The hexadecimal system is useful because it can

represent every byte (8 bits) as two consecutive hex-

adecimal digits. It is easier for humans to read hex-

adecimal numbers than binary numbers.

Short for Inter-IC, a type of bus designed by Phillips

Semiconductors in the early 1980s, which is used to

connect integrated circuits (ICs). I

C is a multi-master

bus, which means that multiple chips can be connected

to the same bus and each one can act as a master by

initiating a data transfer.

Interface

A means by which two systems interact.

LCD

Liquid Crystal Display

Module Type Value

This refers to the model number of the module.

Pixel

The smallest individually controllable element of a

display.

PLED

Polymer Light Emitting Diode. Polymers are sub-

stances formed by a chemical reaction in which two

or more molecules combine to form larger molecules.

PLEDs are thin film displays that are created by sand-

wiching an undoped conjugated polymer between two

proper electrodes at a short distance. The polymer

emits light when exposed to electricity.

Pre-Generated Fonts

Pre-determined fonts which can be downloaded into

graphic liquid crystal displays.

Primitive

A low-level object or operation from which higher-

level, more complex objects and operations can be

constructed. In graphics, primitives are basic elements,

such as lines, curves, and polygons, which you can

combine to create more complex graphical images.

RS-232

Short for recommended standard-232C, a standard in-

terface approved by the Electronic Industries Associa-

tion (EIA) for connecting serial devices.

Scroll

To view consecutive lines of data on the display screen.

The term scroll means that once the screen is full, each

new line appears at the bottom edge of the screen and

all other lines move up one position.

Serial Number

A number that is one of a series and is used for identi-

fication of the module.

Serial Port

A port, or interface, that can be used for serial commu-

nication, in which only 1 bit is transmitted at a time.

Matrix Orbital

PK202-25