Tektronix VX1411A IntelliFrame VXIbus Mainframe, Инструкция по эксплуатации

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Glossary
VX1411A IntelliFrame Mainframe Instruction Manual
Glossary–7
SMP
See Shared Memory Protocol.
STARX
Two (2) bi-directional, 50
W
, differential ECL lines that provide for
inter-module asynchronous communication. These pairs of timed and
matched delay lines connect slot 0 and each of slots 1 through 12 in a
mainframe. The delay between slots is less than 5 ns, and the lines are well
matched for timing skew.
STARY
Two (2) bi-directional, 50
W
, differential ECL lines that provide for
inter-module asynchronous communication. These pairs of timed and
matched delay lines connect slot 0 and each of slots 1 through 12 in a
mainframe. The delay between slots is less than 5 ns, and the lines are well
matched for timing skew.
STST
STart/STop protocol; used to synchronize modules.
SYNC100
A Slot 0 signal that is used to synchronize multiple devices with respect to a
given rising edge of CLK100. These signals are individually buffered and
matched to less than 2 ns of skew.
Synchronous Communications
A communications system that follows the “command-response” cycle
model. In this model, a device issues a command to another device; the
second device executes the command; then returns a response. Synchronous
commands are executed in the order received.
SYSFAIL*
A signal line on the VMEbus that is used to indicate a failure by a device.
The device that fails asserts this line.
System Clock Driver
A functional module that provides a 16 MHz timing signal on the Utility Bus.
System Hierarchy
The tree structure of the commander/servant relationships of all devices in
the system at a given time. In the VXIbus structure, each servant has a
commander. A commander may also have a commander.
Test Monitor
An executive routine that is responsible for executing the self tests, storing any
errors in the ID-ROM, and reporting such errors to the Resource Manager.
Test Program
A program, executed on the system controller, that controls the execution of
tests within the test system.
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