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R-Register
G-Register
Figure 3-7.
SAL Capacitors
ROS WORD
In our development let's point up the
specific control used to accomplish the
functions of our logic statem.ent.
Figure 3-7 shows the SAL's were
selected by capacitors commoned to a
line driver.
The string of capacitor
plates having a common line feeding them
is called a ROS-word.
If we want to expand the logic func-
tions of our machine, we must be able to
change this word or to add another.
We
would like to continue to perform the
first function we developed.
Let's add
Out Bus ...".
S-Register
another ROS-word and another driver
(Figure 3-8).
This new word can perform
the fUnction of the logic statement READ
OUT R, TARE THE OUTPUT THROUGH THE LOGIC
UNIT, AND READ IN G.
Check, using Fig-
ure 3-8.
Now, if we impulse line driver
one, we take what's in R and put it in
S.
If we impulse line driver two, we
take what'S in R and put it in G.
We
can keep adding plates to the SAL's and
more ROS-words until we can perform any
function our data flow can handle.
Now all we need is any easy way to do
this.
3-7
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