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The log is programmable twoLogic sectionAnd t typesToggleFlip flopD flip flopsIs a high-performance logic module for music. It is also characterized by several internal connections between sections. By inputting the gate signal and controlling the voltage of the logic type, it is possible to create a fairly complex rhythm pattern or to synthesize self generated patches and timbre. On (true, 1) is represented by 5 V and off (false, 0) is represented by 0V.

Logic types can be set for blocks a and B. Change the block a / B with select button and select the logic type with type button. Indicates the logic selected by LED. Also, the logic type can be voltage controlled by CV in the range of - 5V to 5V (high voltage, select the right side logic by LED). The following features are:

• There are two logical blocks with X, y and Z input. The input Z is input to the input y and the input y is internally connected to the input x, so one input and two input logic operations can be performed.
• The logic type can be selected for each block and can be voltage controlled (with an attenuator).
• Input X and input y of logic block a are internally connected to input X / y of block B. Also, the output of B is set by jumpers to be internally connected as input of toggle flip flops.
• The T-type flip flop has a push button to trigger the toggle state manually. Also, if you press the trigger button for one second, the trigger input becomes invalid and becomes a simple tap clock.
• The output of the T-type flip-flop is internally connected to the clock input of the D-type flip-flop. The output of the D-type flip-flop is inverted (not) to the input of the D-type flip-flop. By these two internal connections, the D-type flip flop section functions as a toggle and combined with a T-type flip-flop to be a / 2 / 4 clock divider.
• The logic section can be loaded and saved by a length of one second or select button.
• The module also works with audio rates.

Each logic operation means the following operations (excerpts from the PHP manual). Here, one of the inputs to X / Y / Z means gate on, and 0 means gate off. This operation allows you to create complex patterns with simple and sparse gate sequences.

 

Flip flop

The right upper side is T-type flip flop, and the right side is D type flip flop. The T-type flip-flop switches high / low of the output every time the gate on enters the input. It works like / 2 clock divider. In the D-type flip flop, the output on / off matches the input on / off every time the clock turns off. Clock free time keeps its output. In the D-type flip flop of the log, the output of the T-type flip-flop is input to the clock input, and the reverse of the output of the D-type flip-flop itself is input to the input. By these two internal connections, the D-type flip flop section functions as a toggle and combined with a T-type flip-flop to be a / 2 / 4 clock divider.