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| Axxxx t clk set reset out nout model_name |
| Name | Description | Flow | Type |
|---|---|---|---|
| t | Toggle input | in | d |
| clk | Clock | in | d |
| set | Asynchronous set | in | d |
| reset | Asynchronous reset | in | d |
| out | Data output | out | d |
| nout | Inverted data output | out | d |
| .MODEL model_name d_tff parameters |
| Name | Description | Type | Default | Limits |
|---|---|---|---|---|
| clk_delay | Delay from clk | real | 1nS | $1\text{e}^{-12} - \infty$ |
| set_delay | Delay from set | real | 1nS | $1\text{e}^{-12} - \infty$ |
| reset_delay | Delay from reset | real | 1nS | $1\text{e}^{-12} - \infty$ |
| ic | Output initial state | integer | 0 | 0 - 2 |
| rise_delay | Rise delay | real | 1nS | $1\text{e}^{-12} - \infty$ |
| fall_delay | Fall delay | real | 1nS | $1\text{e}^{-12} - \infty$ |
| t_load | Toggle load value (F) | real | 1pF | none |
| clk_load | Clk load value (F) | real | 1pF | none |
| set_load | Set load value (F) | real | 1pF | none |
| reset_load | Reset load value (F) | real | 1pF | none |
| family | Logic family | string | UNIV | none |
| in_family | Input logic family | string | UNIV | none |
| out_family | Output logic family | string | UNIV | none |
| out_res | Digital output resistance | real | 100 | $0 - \infty$ |
| out_res_pos | Digital output res. pos. slope | real | out_res | $0 - \infty$ |
| out_res_neg | Digital output res. neg. slope | real | out_res | $0 - \infty$ |
| min_sink | Minimum sink current | real | -0.001 | none |
| max_source | Maximum source current | real | 0.001 | none |
| sink_current | Input sink current | real | 0 | none |
| source_current | Input source current | real | 0 | none |
The operation of the toggle flip flop is illustrated by the following diagrams. When the T input is high, the output toggles on each rising edge of the clock. If the T input is UNKNOWN the output will be UNKNOWN.
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