bag3_testbenches.measurement.digital.flop.base
Module Contents
Classes
Generic enumeration. |
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Support for flags |
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Base class of all flop timing TestbenchManagers. |
- class bag3_testbenches.measurement.digital.flop.base.FlopInputMode[source]
Bases:
enum.EnumGeneric enumeration.
Derive from this class to define new enumerations.
- class bag3_testbenches.measurement.digital.flop.base.FlopMeasFlag[source]
Bases:
enum.FlagSupport for flags
- classmethod from_str(val: str) FlopMeasFlag[source]
- class bag3_testbenches.measurement.digital.flop.base.FlopMeasMode(in_mode: Union[str, FlopInputMode] = FlopInputMode.IN, in_rising: bool = True, setup_rising: bool = True, hold_rising: bool = True, meas_setup: bool = True)[source]
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- property opposite_clk: FlopMeasMode[source]
- classmethod from_str(val: str) FlopMeasMode[source]
- classmethod from_dict(val: Mapping[str, Any]) FlopMeasMode[source]
- get_out_edge(rst_to_high: bool, out_invert: bool) bag3_testbenches.measurement.data.tran.EdgeType[source]
- class bag3_testbenches.measurement.digital.flop.base.FlopTimingBase(*args: Any, **kwargs: Any)[source]
Bases:
bag3_testbenches.measurement.tran.digital.DigitalTranTB,abc.ABCBase class of all flop timing TestbenchManagers.
Notes
specification dictionary has the following entries in addition to the default ones:
- flop_paramsMapping[str, Any]
Dictionary describing the flop data structure.
- meas_modeUnion[str, FlopMeasMode]
the measurement mode.
- sim_env_namestr
Use to query for sim_env dependent timing offset.
- sim_paramsMapping[str, float]
Required entries are listed below.
- t_rst :
the duration of reset signals.
- t_rst_rf :
the reset signals rise/fall time, measured from thres_lo to thres_hi.
- t_clk_per :
the clock period.
- t_clk_rf :
the clock rise/fall time, measured from thres_lo to thres_hi.
- t_clk_delay :
the clock delay, measured from end of reset period to 50% point.
- t_rf :
the input rise/fall time, measured from thres_lo to thres_hi.
- t_recovery_<reset> :
the recovery time. Only defined during recovery simulation.
- t_removal_<reset> :
the removal time. Only defined during removal simulation.
- c_load :
the load capacitance parameter.
Furthermore, setup time for each input pin will have the variable t_setup_<pin>_<index>. For example, pin “foo<2>” has the variable “t_setup_foo_2”, and pin “bar” has the variable “t_setup_bar_”. The same naming scheme applies to hold time.
- pwr_domainMapping[str, Tuple[str, str]]
Dictionary from individual pin names or base names to (ground, power) pin name tuple.
- sup_valuesMapping[str, Union[float, Mapping[str, float]]]
Dictionary from supply pin name to voltage values.
- dut_pinsSequence[str]
list of DUT pins.
- pin_valuesMapping[str, int]
Dictionary from bus pin or scalar pin to the bit value as binary integer.
- reset_listSequence[Tuple[str, bool]]
Optional. List of reset pin name and reset type tuples. Reset type is True for active-high, False for active-low. Does not include flop reset pins.
- diff_listSequence[Tuple[Sequence[str], Sequence[str]]]
Optional. List of groups of differential pins.
- rtolfloat
Optional. Relative tolerance for equality checking in timing measurement.
- atolfloat
Optional. Absolute tolerance for equality checking in timing measurement.
- thres_lofloat
Optional. Low threshold value for rise/fall time calculation. Defaults to 0.1
- thres_hifloat
Optional. High threshold value for rise/fall time calculation. Defaults to 0.9
- property meas_mode: FlopMeasMode[source]
- abstract classmethod get_meas_modes(flop_params: Mapping[str, Any]) Sequence[FlopMeasMode][source]
- abstract classmethod get_output_meas_modes(flop_params: Mapping[str, Any]) Sequence[FlopMeasMode][source]
- classmethod get_input_pulse(pin: str, var_setup: str, var_hold: str, pos: bool, cycle_idx: int = 1, hold_opposite: bool = False) Mapping[str, Any][source]
- abstract get_stimuli() Tuple[Sequence[Mapping[str, Any]], Dict[str, int], Set[str], Sequence[str]][source]
- abstract get_output_map(output_timing: bool) Mapping[str, Tuple[Mapping[str, Any], Sequence[Tuple[bag3_testbenches.measurement.data.tran.EdgeType, Sequence[str]]]]][source]
- get_timing_info(meas_mode: FlopMeasMode, in_pins: Sequence[str], clk_pin: str, cond_str: str, rst_active_high: bool, inc_delay: bool = True, non_seq: bool = False, offset: Union[float, Mapping[str, float]] = 0) Mapping[str, Any][source]
- get_t_clk(data: bag.simulation.data.SimData) numpy.ndarray[source]
- get_t_start(data: bag.simulation.data.SimData) numpy.ndarray[source]
- get_rst_pulse(rst_pin: str, rst_active_high: bool, var_name: str = '', is_recovery: bool = False) Mapping[str, Any][source]
- pre_setup(sch_params: Optional[Mapping[str, Any]]) Optional[Mapping[str, Any]][source]
Set up PWL waveform files.
- print_results(data: bag.simulation.data.SimData) None[source]
Override to print results.
- calc_clk_to_q(data: bag.simulation.data.SimData, out_name: str, out_edge: bag3_testbenches.measurement.data.tran.EdgeType) numpy.ndarray[source]
Get clk-to-q- delay.
Currently assumes clock parameters and voltage parameters are not swept.
- calc_out_trf(data: bag.simulation.data.SimData, out_name: str, out_edge: bag3_testbenches.measurement.data.tran.EdgeType) numpy.ndarray[source]
Get output rise/fall time.