Hard Processor System Technical Reference Manual: Agilex™ 5 SoCs

ID 814346
Date 7/19/2024
Public
Document Table of Contents

12.2.6.2. Interfaces

The MPFE has interfaces that allow it to communicate to the Fabric core logic, the SDRAM, and the HPS. An overview of these interfaces is available in the table below. Further details are provided in the sections following the table.

Table 359.  Interfaces

Group

Interface Name

Initiator

Protocol

Width

Comment

Fabric

FPGA-to-HPS

Fabric core logic

ACE lite

256-bit

The IO coherent port from the Fabric into the CCU/NCORE. Can access HPS peripherals, OCRAM, and DRAM. Supports atomic operations in the interconnect.

FPGA-to-SDRAM

Fabric core logic

AXI4

256/128/64-bit

Non-coherent fabric access to SDRAM.

HPS

CCU_DMI0

CCU/NCORE

AXI4

256-bit

CCU/NCore target NIU for SDRAM bound traffic

CCU_DMI1

CCU/NCORE

AXI4

256-bit

CCU/NCore target NIU for SDRAM bound traffic.

Only used when traffic is interleaved between

Ports.

MPFE_CSR

CCU/NCORE

AXI4

64-bit

HPS access to the MPFE NoC, IOBank0 and

IOBank1 CSRs.

NOC_OBS

MPFE

ATB

~50 bits

NOC observation signals (debug) from the MPFE NOC to the CoreSight* System.

MPFE_TBU

TCU

AXIS

72-bits

(TBU->TCU)

104-bits

(TCU->TBU)

AXI streaming port for the local TBU to/from the TCU

IOBank0_ecc_intr

MPFE

wire

1-bit

IOBank0 ECC error interrupt to GIC.

IOBank1_ecc_intr

MPFE-lite

wire

1-bit

IOBank1 ECC error interrupt to GIC.

IOBank_0

IOBank0_CSR

MPFE

AXI-lite

32-bit

Access to IOBank0 IOSSM CSRs

IOBank0_P0

MPFE

AXI4

256-bit

SDRAM access through 32-bit controller

IOBank0_P1

MPFE

AXI4

256-bit

SDRAM access through 16-bit controller

IOBank0_ecc_intr

IOBank0

wire

1-bit

IOBank0 ECC error interrupt

IOBank_1

IOBank1_CSR

MPFE

AXI-lite

32-bit

Access to IOBank1 IOSSM CSRs

IOBank1_P0

MPFE

AXI4

256-bit

SDRAM access through 32-bit controller

IOBank1_P1

MPFE

AXI4

256-bit

SDRAM access through 16-bit controller

IOBank1_ecc_intr

IOBank1

wire

1-bit

IOBank1 ECC error interrupt

MPFE-lite

MPFE_lite_CSR

MPFE

AXI-lite

32-bit

MPFE to MPFE-lite port for access to IOBank1 IOSSM CSRs

MPFE_lite_P0

MPFE

AXI4

256-bit

MPFE to MPFE-lite port for access to IOBank1 Port 0 (32-bit controller)

MPFE_lite_P1

MPFE

AXI4

256-bit

MPFE to MPFE-lite port for access to IOBank1 Port 1 (16-bit controller)

IOBank1_ecc_intr

IOBank1

wire

1-bit

IOBank1 ECC error interrupt to MPFE