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Introduction to Logic Tutorial (cont’d)
Location 11 activates XOR (exclusive or):
A clock patched to either the X-CLK or X-MOD input will advance the Rene to the next X-Axis Location;
however, if both are high at the same time, the Rene does not advance. With this XOR activated, try running
a low-frequency square wave into the X-CLK input for steady clock advancement while periodically sending
a wide Gate signal to the X-MOD input in order to "invert" the clock.
The next row down contains the same three logic functions, but they only affect the Gates that appear at the
G-X output-- not the Rene’s movement/clock.
For example:
Location 5 activates G AND MOD for G-X:
Now, the signals at the X-CLK and X-MOD inputs BOTH need to be high in order to cause a Gate to appear at
the G-X Output. Notice, even when the Rene advances to the next X-Axis Location, no Gate appears at G-X
until there is positive signal present in the X-MOD input as well.
Therefore, with a combination of the CLOCK and GATE logic rows, you can have X-Clock Advancement
and X-Gates at G-X somewhat independent from one another, yet always related to some
combination of the signals patched to the X-CLK and X-MOD inputs.
The final row (Locations 1, 2, and 3) contains GATE by OPPOSING CLOCK logic. This adds one more stage of
logic operations to the G-X Output Gates, deriving the output state from the result of the two rows above as
well as the Y-CLK Input.
The Y-FUN Page contains the same logic functions; however, they control movement along the Y-Axis and its
associated Y-CLK and Y-MOD inputs, as well as the G-Y output. The bottom row (Locations 1, 2, and 3)
contains the same GATE by OPPOSING CLOCK logic as before, using the X-CLK Input to derive the output
state.
Содержание Rene
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