This version (06 Oct 2023 09:18) was approved by Gireesha Nirvanaiah.The Previously approved version (25 Nov 2022 07:40) is available.
Table of Contents
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APPENDIX E: Crossbar View & Configuration
Crossbar view is available for all the nodes.
Crossbar view depends on the below configuration:
- Number of Tx/Rx pins
- TX Crossbar registers (A2B_TXXBAR0 - A2B_TXXBAR31)
- RX Crossbar registers (A2B_RXMASK0 - A2B_RXMASK7)
- TDM Mode Configuration
- Tx/Rx Interleave Configuration (A2B_I2SCFG. RXPINS & A2B_I2SCFG. TXPINS)
In addition to the above, Crossbar view for main node supports offset on the TX pins which can be configured using the register (A2B_I2STXOFFSET.TXOFFSET).
Hint : Tx Offset adjustment is not supported for sub-nodes, only supported on main node
Crossbar View Dependencies Configuration
Number of Tx/Rx Pins Configuration
Figure 86 : Number of Tx/Rx Pins Configuration
TX Crossbar registers (A2B_TXXBAR0 - A2B_TXXBAR31)
Figure 87 : TX Crossbar registers (A2B_TXXBAR0 - A2B_TXXBAR31)
RX Crossbar registers (A2B_RXMASK0 - A2B_RXMASK7)
Figure 88 : RX Crossbar registers (A2B_RXMASK0 - A2B_RXMASK7)
TDM Mode & Tx/Rx Interleave Configuration
Figure 89 : TDM Mode & Tx/Rx Interleave Configuration
Crossbar View
For example, considering the 3-node schematic with the stream configuration example, crossbar view looks like as mentioned in the snapshots for all the nodes
Sample Stream Definition & Assignment for 3 node schematics
Figure 90 : Sample Stream Definition & Assignment for Crossbar view visualization
Crossbar view at Main node with no Tx offset
Figure 91 : Crossbar view at Main node
Crossbar view at sub node – 0
Figure 92 : Crossbar view at sub node – 0
The channel D0 and D1 received on RX0 pin is “MicIn” stream. Because of the data-tunnel addition, the stream colour is mis-represented in RX0. This is under investigation and will be updated in next release.
Crossbar view at sub node – 1
Figure 93 : Crossbar view at sub node – 1
Crossbar view at Main node with Tx Offset
The below snapshot is taken with the Tx Offset value “4” on TX 0 pin
Figure 94 : Crossbar view at Main node with Tx Offset
Crossbar view at Main node with Tx Interleave enabled
The similar way Rx Interleave also works.
Figure 95 : Crossbar view at Main node with Tx & Rx Interleave enabled
Context Menu’s on Crossbar
Context Menu’s on Tx Crossbar at Main Node side
Crossbar supports the below options on Tx pin at the main node side as shown in the below snapshot:
- Set Offset (this option can be used to set the offset on the desired location of TX pin)
- Clear Offset (this option clears the existing offset)
- Reset Channel Map (this option reset’s channel mapping if any mapping is done manually on crossbar)
Figure 96 : Context Menu's on Tx Pin of Crossbar at Main Node
Context Menu’s on Rx Crossbar
Crossbar supports the below options on Rx pin as shown in the below snapshot:
- Enable Mapping (this option can be used to enable a particular slot on the Rx Pin)
- Clear Mapping (this option clears the mapping of a particular slot on the Rx pin)
Figure 97 : Context Menu's on Rx Crossbar
resources/tools-software/a2bv2/quickstartguide/appendix-e.txt · Last modified: 08 Dec 2022 13:00 by Gireesha Nirvanaiah