====== JK-FF ======
===== Overview =====
{{:courses:system_design:synthesis:master-slave_flip-flop:folie340_jkffcircuit.svg?nolink&500|JK-FF Circuit}}

  * Q(t+1)=[(Q' and J) or (Q and K')](t)

^ J ^ K ^ C ^ Q(t+1) ^ state ^
| 0 | 0 | ↑ | Q(t)   | hold  |
| 0 | 1 | ↑ | 0      | reset |
| 1 | 0 | ↑ | 1      | set   |
| 1 | 1 | ↑ | <text type="danger">Q(t)'</text> | <text type="danger">invert</text> |

↑ = rising edge of clock

  * J=K=1 may be used for: inverting (frequency divider, counter)

{{:courses:system_design:synthesis:master-slave_flip-flop:folie340_jkffblock.svg?nolink&150|JK-FF Block}}

{{:courses:system_design:synthesis:master-slave_flip-flop:folie340_timingbehavior.svg?nolink&700|JK-FF Timing Behavior}}

  * undefined up to first RESET
  * "Toggle"-behavior for J=K=1