Curtiss-Wright GT200 VME, Справочник по аппаратуре

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GLOSSARY
PIO --------------------------------- Programmed I/O transfer. An I/O transfer, primarily conducted by a
driver program, that requires processor intervention after each byte or
word is transferred. Contrast with Direct Memory Access (DMA)
transfer.
ring topology---------------------- A network topology in which every node has exactly two branches
connected to it.
RTS-------------------------------- RS-232 line indicating a Request To Send data.
Rx ---------------------------------- Abbreviation for receive or receiver.
RxData---------------------------- RS-232 Receive Data line.
SFP--------------------------------- Small form factor pluggable transceiver.
shared memory (SM) ------------ GT200 memory physically located on the network board. This dual-
ported memory is accessible by the host and the network. A host write to
shared memory results in a transmitted write to all GT200 nodes at the
same relative location.
slave-------------------------------- A functional module that detects DTB cycles initiated by a master, and
when those cycles specify its participation, transfers data between itself
and the master.
slot --------------------------------- A position where a board can be inserted into a backplane. If the system
has both a J1 and a J2 backplane (or a combination J1/J2 backplane) each
slot provides a pair of 96-pin connectors. If the system has only a J1
backplane, then each slot provides a single 96-pin connector.
system clock driver -------------- A functional module that provides a 16 MHz timing signal on the utility
bus.
Tx ---------------------------------- Abbreviation for transmit or transmitter.
TxData----------------------------- RS-232 Transmission Data line
Copyright 2005 GLOSSARY-3 GT200 VME Hardware Reference