PCIe Endpoint Mode

Versal ACAP Technical Reference Manual (AM011)

Document ID
AM011
Release Date
2022-04-26
Revision
1.4 English

The transactions to and from the CPM are summarized in the following table for the PCIe® endpoint mode. The direction of the transaction is reflected in the route name: source_destination. The PS designation includes everything that is not the CPM (e.g, NoC/DDR).

Note: The root names that include an asterisk (*) include restrictions and/or programming notes.
Table 1. Transactions in PCIe Endpoint Mode
Route Name Source Via Destination Notes
From CPM To PS
EP_IN 1 CPM_NOC0

CPM_PS switch, and
NoC Interconnect

DDR memory or PL Physical address
EP_IN 2 CPM_NOC0

CPM_PS switch,
SMMU TBU 3
CCI,
FPD, and
OCM switch

OCM memory  
EP_IN 3 CPM_NOC0

CPM_PS switch,
SMMU TBU 3,
CCI, and
FPD switch

FPD_AXI_PL interface  
EP_IN 4 CPM_NOC1 NoC Interconnect DDR memory or PL Physical address
EP_IN 5 CPM_NOC0 CPM_PS switch Debug Packet Controller  
From PS To CPM
EP_OUT 1 APU

CCI,
PS_CPM switch

CPM Interconnect  
EP_OUT 2 PL NoC Interconnect CPM Interconnect  
EP_OUT 3 PL_AXI_FPD interface

SMMU TBU 5,
CCI,
FPD switch, and
PS_CPM switch

CPM Interconnect  
EP_OUT 4 PL_AXILITE_FPD

SMMU TBU 2
CCI, and
PS_CPM switch

CPM Interconnect  
EP_OUT 5 Debug Packet Controller PS_CPM switch CPM Interconnect