Hard Processor System Technical Reference Manual: Agilex™ 3 SoCs

ID 848530
Date 6/23/2025
Public
Document Table of Contents

13.4.1. Initiator and Target Connectivity

The system interconnect is a highly efficient packet-switched network. The following table shows the connectivity of all the initiator and target interfaces in the system interconnect.

Table 374.  Initiator-to-Target Connectivity Matrix
Target Initiator
DAP CCU53 DMAC54 EMAC 0/1/2 Peripheral55
CCU Targets56  
TCU      
L4 Main Bus Targets    
L4 MP Bus Targets      
L4 AHB Bus Targets      
L4 SP Bus Targets    
L4 SYS Bus Targets    
Secure/Non-Secure Timestamp System Counters    
L4 ECC Bus Targets      

L4 SHR Bus (Clock, Reset and System Manager)

     
DAP     57
STM    
LWH2F Bridge
H2F Bridge
Service Network      
HPS-to-SDM – Peripheral Access (QSPI, SD/eMMC)    
HPS-to-SDM – Mailbox Access      

The following table shows the TBU connectivity matrix.

Table 375.  TBU Connectivity Matrix
Target Initiator
EMAC_TBU IO_TBU SDM_TBU DMA_TBU
EMACx (TSNx)
NAND
SD/eMMC
USB
ETR
SDM2HPS_BE
DMA
53 CCU initiator agent: MPU complex (MPCore), FPGA-to-HPS, HPS peripheral initiators, TCU.
54 Direct memory access controller
55

Peripheral Initiator TBU, including:

  • TBU for EMAC 0/1/2
  • TBU for USB 0/1, NAND, SD/eMMC, and ETR
  • TBU for DMAC
56 CCU Targets: MPFE, OCRAM, GIC, HPS peripheral targets
57 ETR access only