avl_apb._rdriver module

class avl_apb._rdriver.ReqDriver(*args, **kwargs)[source]

Parameters:

name (str)
parent (Component)

__init__(name, parent)[source]

Initialize the Requester Driver for the AMBA agent.

Parameters:

name (str) – Name of the agent instance
parent (Component) – Parent component

Return type:

None

pre_wakeup: Pre-wakeup delay - time to wait before driving the wakeup signal (0.0 - 1.0) (>= version 5)

post_wakeup: Post-wakeup delay - time to wait after driving the wakeup signal (0.0 - 1.0) (>= version 5)

async reset()[source]

Reset the driver by setting all signals to their default values. This method is called when the driver is reset.

By default 0’s all signals - can be overridden in subclasses to add randomization or other behavior.

Return type:: None

async quiesce()[source]

Quiesce the driver by setting the psel signal to 0. This method is called when the driver is quiesced.

By default calls reset() to set all signals to their default values. Can be overridden in subclasses to add randomization or other behavior.

Return type:: None

async drive(item)[source]

Drive the signals based on the provided sequence item. This method is called to drive the signals of the AMBA interface.

Parameters:: item (SequenceItem) – The sequence item containing the values to drive
Return type:: None

async get_next_item(item=None)[source]

Get the next sequence item.

This method retrieves the next sequence item from the sequencer or the previously reset interrupted item.

The implementation ensures items are driven on the rising edge of pclk, when not in reset, while allowing for back-to-back requests if the sequencer provides them.

Parameters:: item (SequenceItem, optional) – The sequence item to retrieve, defaults to None
Returns:: The next sequence item
Return type:: SequenceItem
Raises:: NotImplementedError – If the method is not implemented in subclasses