Motorola MVME2603-1121A, Installation And Use Manual

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Glossary
GL-2
G
L
O
S
S
A
R
Y
ASIC
A pplication- S pecific I ntegrated C ircuit
AUI
A ttachment U nit I nterface
BBRAM
Battery Backed-up Random Access Memory
bi-endian
Having big-endian and little-endian byte ordering
capability.
big-endian
A byte-ordering method in memory where the address
n of a word corresponds to the most significant byte. In
an addressed memory word, the bytes are ordered (left
to right) 0, 1, 2, 3, with 0 being the most significant byte.
BIOS
B asic I nput/ O utput S ystem. The built-in program that
controls the basic functions of communications between
the processor and the I/O devices (peripherals). Also
referred to as ROM BIOS.
BitBLT
Bit Boundary BL ock T ransfer. A type of graphics
drawing routine that moves a rectangle of data from one
area of display memory to another. The data need not
have any particular alignment.
BLT
BL ock T ransfer
board
The term more commonly used to refer to a PCB
(printed circuit board). Basically, a flat board made of
nonconducting material, such as plastic or fiberglass, on
which chips and other electronic components are
mounted. Also referred to as a circuit board or card.
bpi
b its p er i nch
bps
b its p er s econd
bus
The pathway used to communicate between the CPU,
memory, and various input/output devices, including
floppy drives and hard disk drives. Available in various
widths (8-, 16-, and 32-bit), with accompanying
increases in speed.
cache
A high-speed memory that resides logically between a
central processing unit (CPU) and the main memory.
This temporary memory holds the data and/or