Conventions - Performance Computer PT-VME161 User Manual

Performance Computer

Conventions

Upper case names enclosed in square brackets ([,]) represent signal names that can be found in the sche-
matics.
Numbers enclosed in "less than" (<) and "greater than" (>) symbols refer to individual bits of a signal
bus. i.e. +MPA<0> represents a the least significant bit of the 32 bit MicroProcessor Address bus.
+MPA<0:31> represents all signals associated with the MicroProcessor Address bus.
Device pins are referenced with a Reference Designator, hyphen, pin number. i.e. U52-30 indicates pin
30 of location U52.
A Jumper Block can contain one or many individual Jumpers. If a Jumper Block contains more than two
pins then the individual Jumpers consist of three pin groups starting with pin 1. (i.e., Jumper 1 is
comprised of pins 1 through 3, Jumper 2 is comprised of pins 4 through 6, etc.) The individual Jumpers
in a Jumper Block are referenced with the Jumper Block Reference Designator, underscore, and Jumper
number. (i.e., K6_2 indicates jumper 2 of Jumper block K6.) The individual pins in a Jumper Block (or
Jumper) are referenced with a Reference Designator, hyphen, pin number. (i.e., K7-30 indicates pin 30
of Jumper Block K7 (or Jumper K7_10).)
VMEbus signal pins are referenced with the Connector Designator, hyphen, Row Designator, Pin
number. (i.e., P2-B3 refers to Pin 3 of Row B on the VMEbus "P2" connector.)
Throughout this document references to the Motorola MC68060 processor also imply the MC68EC060.
Specific differences will be cited as necessary.
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