Glossary of Terms
9 - 1
Revision 1 - 07 July
1999
Event 4
TECHNICAL MANUAL
9.
Glossary of Terms
Abbreviation
Term
Explanation
ADC
Analogue to Digital
Converter
A device for converting real world (analog)
signals into digital information a micro-processor
can manipulate
BOOT
BOOT
System startup
CE
Chip enable
A select pin provided on a device to enable it to
be used in conjunction with a CS line
CE
Compliance mark
Equipment marked as such complies with the
European safety/EMC regulations
C-Tick
Compliance mark
Equipment marked as such complies with the
Australian EMC regulations
CPU
Central Processing
Unit
The heart of a microprocessor or computer
CS
Chip Select
A connection that is asserted under certain
circumstances to select a particular device
DAC
Digital to Analogue
A device for generating an analogue
representation of a digital control signal
Converter
DIP
Dual In-line
Package
A device package format with 2 parallel rows of
pins
EL
Electroluminescent
A type of backlight that uses high voltage
EPROM
Erasable
Programmable
Read Only
Memory
A type of memory that is not intended to be re-
programmed in circuit
FLASH
Flash RAM
A type of memory very much like EPROM but
which is designed to be re-programmed in-
system enabling program updates
GAL
Generic Array
Logic
A logic device that can be programmed to
perform many logic functions
$
Hexadecimal
number
The number $A is 10
(decimal)
and $F is 15
(decimal)
IRQ
Interrupt Request
A connection that is asserted when a device has
information ready to be accessed by the CPU
Jumper
Shunt, Link
A jumper is used to configure a system by
shorting a pair of pins together
LED
Light Emitting
Diode
A diode that is optimised to radiate light
LCD
Liquid Crystal
Display
A type of display that uses a liquid to prevent the
transmission of light
NMI
Non-Maskable
Interrupt
An IRQ that cannot be ignored