Motorola MVME2600 Series Reference Manual page 273

Glossary
RAM
RAS
Raven
Reduced-Instruction-Set Computer (RISC)
RFI
RGB
G
L
RISC
O
ROM
S
RTC
S
SBC
A
R
SCSI
Y
SCSI-2 (Fast/Wide)
serial port
GL-10
Random-Access Memory. The temporary memory that a
computer uses to hold the instructions and data currently being
worked with. All data in RAM is lost when the computer is turned
off.
Row Address Strobe. A clock signal used in dynamic RAMs to
control the input of the row addresses.
The PowerPC-to-PCI local bus bridge chip developed by
Motorola for the MVME2600 and MVME3600 series of boards.
It provides the necessary interface between the PowerPC 60x bus
and the PCI bus, and acts as interrupt controller.
A computer in which the processor's instruction set is limited to
constant-length instructions that can usually be executed in a
single clock cycle.
Radio Frequency Interference
The three separate color signals: Red, Green, and Blue. Used with
color displays, an interface that uses these three color signals as
opposed to an interface used with a monochrome display that
requires only a single signal. Both digital and analog RGB
interfaces exist.
See Reduced Instruction Set Computer (RISC).
Read-Only Memory
Real-Time Clock
Single Board Computer
Small Computer Systems Interface. An industry-standard high-
speed interface primarily used for secondary storage. SCSI-1
provides up to 5 Mbps data transfer.
An improvement over plain SCSI; and includes command
queuing. Fast SCSI provides 10 Mbps data transfer on an 8-bit
bus. Wide SCSI provides up to 40 Mbps data transfer on a 16- or
32-bit bus.
A connector that can exchange data with an I/O device one bit at
a time. It may operate synchronously or asynchronously, and may
include start bits, stop bits, and/or parity.