The XPPU instances are listed in the following table.
| Name | Upstream | Downstream | Register Module Address |
|---|---|---|---|
| LPD_XPPU | LPD main interconnect switch | LPD IOP interconnect switch | |
| PMC_XPPU | PMC main interconnect switch | PMC IOP interconnect switch | |
| PMC_XPPU_NPI | PMC main interconnect switch | NPI programming interface controller |