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There are multiple configuration parameters that configure or modify the functionality of the Low Power Distributor Q-Channel.
The following table shows the LPD-Q configuration parameters.
Table 2-1 LPD-Q configuration parameters
| Parameter | Possible settings | Default | Description |
|---|---|---|---|
| SEQUENCER | 0, 1 | 0 |
0 = The LPD-Q operates as an expander. 1 = The LPD-Q operates as a sequencer. |
| NUM_QCHL | 2-32 | 2 | Sets the number of device (dev_*) Q-Channel interfaces in the LPD-Q. |
| CTRL_Q_CH_SYNC | 0, 1 | 1 |
0 = A synchronizer is not present on the ctrl_qreqn_i input. 1 = A synchronizer is present on the ctrl_qreqn_i input. |
| DEV_Q_CH_SYNC | 0, 1 | 1 |
0 = Synchronizers are not present on the dev_qacceptn_i[N] or dev_qdeny_i[N] inputs. 1 = Synchronizers are present on the dev_qacceptn_i[N] and dev_qdeny_i[N] inputs. |
| ACTIVE_DENY | 0, 1 | 1 |
0 = Support for denying a quiescence request by using dev_qactive_i[N] is not included. 1 = Support for denying a quiescence request using dev_qactive_i[N] is included. Synchronizers are included on the dev_qactive_i[N] inputs, where these signals are used internally. Note:The path from a device to the controller QACTIVE is combinatorial, irrespective of whether synchronizers are present. |
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