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Glossary-2 Sun Ultra 60 Service Manual • August 2001
DTAG Dual tag or data tag.
DTE Data terminal equipment.
ECP Extended capability port. An IEEE.1284 standard.
EMI Electro-magnetic interference. Electrical characteristic that directly or indirectly
contributes to a degradation in performance of an electronic system.
Ethernet A type of network hardware that provides communication between systems
connected directly together by transceiver taps, transceiver cables, and various
cable types such as coaxial, twisted-pair, and fiber-optic.
FBC Frame buffer controller. An ASIC responsible for the interface between the
UPA and the 3DRAM. Also controls graphic draw acceleration.
FIFO First-in first-out.
flash PROM Flash programmable read-only memory.
Gbyte Gigabyte.
GUI Graphical user interface.
IDC Insulation displacement connector.
I/O Input/output.
Kbyte Kilobyte.
LED Light-emitting diode.
Mbyte Megabyte.
MBps Megabyte per second.
Mbps Megabit per second.
MHz Megahertz.
MII Media independent interface.
ns Nanosecond.
NVRAM Non-volatile random-access memory. Stores system variables used by the boot
PROM. Contains the system hostID number and Ethernet address.
OBP OpenBoot PROM. A routine that tests the network controller, diskette drive
system, memory, cache, system clock, network monitoring, and control
registers.