Advanced Properties - 1.1 English

AXI4-Stream Infrastructure IP Suite (PG085)

Document ID
PG085
Release Date
2022-08-08
Version
1.1 English

Register Pipeline Type

This property allows for the trade-off between performance and area efficiency.

Default: A two-deep registered mode (supports back-to-back transfers) that balances performance with low input fanout, as used in the AXI4-Stream Switch.

Fully-registered: Similar to Default (supports back-to-back transfers), except all payload and handshake outputs are driven directly from registers.

Light-weight: Inserts one bubble cycle after each transfer.

SLR Crossing: Adds extra pipeline stages to optimally cross one super logic region (SLR) boundary in stacked silicon interconnect (SSI) devices. All SLR crossings are flop-to-flop with fanout=1. See Floor Planning Constraints for AXI4-Stream Register Slice SLR Crossing Modes for floorplanning guidance.

SLR TDM Crossing: Similar to SLR Crossing, except it consumes half number of payload wires across the SLR boundary and propagates the cross-SLR signals at twice the frequency of the AXI interfaces.

Bypass: Directly connects the slave interface to the master interface.

Bypass-Endpoint: Similar to Bypass, except for allowing interface properties to be treated as fixed values during IP integrator design validation.

Multi SLR Crossing: Supports spanning zero or more SLR boundaries using a single Register Slice instance. Also inserts additional pipeline stages within each SLR to help meet timing goals.

Number of SLR Crossings: When using Multi SLR Crossing mode, select the number of SLR boundaries to be crossed within the core.

Pipeline Stages within Master-side SLR: When using Multi SLR Crossing mode, select the number of additional pipeline stages to insert within the master-side SLR (between the SLR boundary and the SI interface).

Pipeline Stages within Slave-side SLR: Select the number of additional pipeline stages to insert within the slave-side SLR (between the SLR boundary and the MI interface).

Pipeline Stages within Middle SLR: Select the number of additional pipeline stages to insert within each middle SLR (between the two SLR boundaries). Enabled only when Number of SLR Crossings is >1.