8-61.
Dependency
Notation
8-62.
Dependency notation is a way to simplify symbols from complex
IC
elements
by
denoting the relationship
between inputs, outputs, or inputs and outputs, without actually showing all the elements and interconnections in-
volved. The information provided by dependency notation supplements that provided by the qualifying symbols
for an element's function.
Table
8-5
contains a summary of the
11
types of dependency notations.
Table
8-5.
Summary
of
Dependency
Notation
HP
5334B
-
Service
Manual
8-
12
Type of
Dependency
Address
Control
Enable
AND
Mode
Negate (X-OR)
RESET
SET
OR
Transmission
Interconnection
*These letter symbols
FECTED
by that input is labeled with that same number. When the labels
EN,
R,
and
S
appear at inputs without the following
numbers, the descriptions above do not apply. The action of these inputs is described under "Symbols Inside the Outline".
Letter
Symbol*
A
C
EN
G
M
N
R
S
V
X
Z
appear at
Affecting Input
At Its 1-State
Permits action (address selected).
Permits action.
Permits action.
Permits action.
Permits action (mode selecfted).
Complements state.
Affected output reacts as
it
would to
S
=
0,
R
=
1.
Affected output reacts as it
would to
S
=
1,
R
=
0.
Imposes
1
state.
Bidirectionally connected input
to output.
Imposes
1
state.
the AFFECTING input (or output) and are
Affecfting Input
At Its 0-State
Prevents action (address not selected).
Prevents action.
Pervents action
of
inputs.
outputs off.
outputs at external high impedance,
no change in internal logic state.
Other outputs at internal
0
state.
Imposes
0
state.
Prevents action (mode not selected).
No effect.
No effect.
No effect.
Permits action.
Input to output bidirectionally
not connected.
Imposes
0 state.
iollowed by a number. Each input (or output) AF-
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