Assertion: flop's input | /r/HasProperty | high
Facets:
value: in a jk flip-flop
type: OTHER
value: at
type: DEGREE
value: normally
type: DEGREE
value: at logic level
type: OTHER
value: for a few milliseconds
type: TEMPORAL
value: at once
type: TEMPORAL
Source sentences:
text: Your schematic shows a T-type flip-flop, which toggles when its input is high.
text: The inverter causes the first input to the NAND gate (marked 1) to be HIGH, while the second input is LOW.
text: Thus, both inputs to the NAND gate are HIGH for a few milliseconds, which causes the output from the NAND gate at point 2 to go LOW.
text: (Clk) input is “HIGH” at logic level “1”.
text: If the RESET input is HIGH when the clock is triggered, the Q output goes LOW.
text: Note that in an SR flip-flop, the SET and RESET inputs shouldn’t both be HIGH when the clock is triggered.
text: The difference between a JK flip-flop and an SR flip-flop is that in a JK flip-flop, both inputs can be HIGH.
text: When both the J and K inputs are HIGH, the Q output is toggled, which means that the output alternates between HIGH and LOW.
text: When the S and R inputs are both high, feedback maintains the Q outputs to the previous state.
text: 2. if Set or Reset change state while the enable (EN) input is high the correct latching action may not occur
text: Secondly, if the state of S or R changes its state while the input which is enabled is high, the correct latching action does not occur.
text: At the positive going edges of clock pulses a and b, the D input is high so Q is also high.
text: In the first timing diagram, the outputs respond to input D whenever the enable (E) input is high, for however long it remains high.
text: When both inputs are high at once, however, there is a problem: it is being told to simultaneously produce a high Q and a low Q.
text: The D latch outputs the D input whenever the Enable line is high, otherwise the output is whatever the D input was when the Enable input was last high.
text: Normally both inputs are high.
text: If \$CLK\$ is low both inputs of the SR flip-flop are high, and it retains its output state.
text: Where I am running into problems is knowing when CLRN, PRN, and the input will be high or low.
text: For the second clock pulse, both the flip flops will toggle because the inputs of both the flip flops FF 1 and FF 2 are at high.