Matrix Orbital LCD2041, Техническое руководство

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Configuration The way a system is set up, or the assortment of com-
ponents that make up the system. Configuration can
refer to either hardware or software, or the combina-
tion of both.
Contrast The ratio of luminance between the light state of the
display to the dark state of the display.
Controller The micro-controller or PC used to control the Matrix
Orbital display unit
DB-9 The designation of a connector used in the RS-232 in-
terface: 9 pin connector
Firmware Software (programs or data) that has been written onto
read-only memory (ROM). Firmware is a combina-
tion of software and hardware. ROMs, PROMs and
EPROMs and flash EEPROMs that have data or pro-
grams recorded on them are firmware.
Font A design for a set of characters. A font is the combina-
tion of typeface and other qualities, such as size, pitch,
and spacing.
Font Metric A definition of where font is to be placed, such as mar-
gins and spacing between characters and lines.
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.
I
2
C Short for Inter-IC, a type of bus designed by Phillip’s
Semiconductors in the early 1980s, which is used to
connect integrated circuits (I
2
Cs). I
2
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.
Pre-Generated Fonts Pre-determined fonts which can be downloaded into
graphic liquid crystal displays.
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