How to use the reset and set function status of the trigger?

A trigger is a special stored procedure that is not called by a program or started manually, but is triggered by an event, such as when an operation (insert, delete, update) is performed on a table. Triggers are often used to enforce data integrity constraints, business rules, and more.

Trigger pinning is to force the coil to be on or off. Reset is to remove the forced state and return it to the normal state.

The set end is to make the trigger output (q0)=1;

The reset side is to make the flip-flop output (q0)=0;

The direct set and reset terminals are enabled asynchronously without waiting for the cooperation of clock pulses.

A trigger is a special stored procedure whose execution is not called by a program or started manually, but is triggered by an event, such as when an operation is performed on a table. Triggers are often used to enforce data integrity constraints, business rules, and more.

Trigger pinning is to force the coil to be on or off. Reset is to remove the forced state and return it to the normal state. The set end is to make the trigger output (q0)=1;The reset side is to make the flip-flop output (q0)=0;The direct set and reset terminals are enabled asynchronously without waiting for the cooperation of clock pulses.

The result of the experiment is that it is not complementary and the state is uncertain, and a pseudo-random signal generator is made from this circuit.

I did a similar experiment to your description many years ago (using the NAND gate.

The experimental result is that it is not complementary and the state is uncertain, and a pseudo-random signal generator is made from this circuit.

The S and R of the basic RS flip-flop are also called the direct set terminal and the direct reset terminal respectively, and its logic circuit is shown in the figure below, which is composed of two RS flip-flops and NAND gates, which have two input terminals R and S and two output terminals Q and Q NOT.

The basic RS flip-flop is also one of the integrated flip-flops, in which the functions of the direct set end and the direct reset end include:

1. When s'=1，r'=0: No matter what state the trigger is in, because s=1, q is not =0, and the trigger is in the "1" state (or set state).

2. When s'=0，r'=1: No matter what state the trigger was in, since r=1, q = 0, q is not = 1, and the trigger is in the "0" state (or reset state).

3. When s'=0，r'=0: The integrated trigger remains unchanged.

4. When s'=1，r'=1: The status of the integration trigger cannot be determined at this time. Generally, this is not allowed, so the input of the trigger, s and r, cannot be 1 at the same time.

It can be forcibly set or reset regardless of the state of the other ends.