FPGA AI Suite Handbook

ID 863373
Date 11/21/2025
Public
Document Table of Contents

10.3.2. AXI Interfaces

Table 36.  AXI Control Interface

Name

Type

Clock

Reset

Description

CSR Responder

AXI4-Lite

ddr_clk

dla_resetn

Exposes IP MMIO region

The CSR initiator operates on the ddr_clk clock.

Table 37.  AXI External Memory Interface

Name

Type

Clock

Reset

Description

DDR0 Initiator

AXI4

ddr_clk

dla_resetn

Initiator port for connecting to DDR memory

Table 38.  AXI Interrupt Interface

Name

Type

Clock

Reset

Description

Interrupt Initiator

Interrupt Sender

irq_clk

dla_resetn

Level sensitive interrupt

The following parameters are used by the AXI interfaces. The parameter values can be modified in the Architecture Description files as described in Generating the FPGA AI Suite IP for Integration into an FPGA Design.

Name

Supported Value

Entry in Architecture Description

C_CSR_AXI_ADDR_WIDTH

11

= dma.csr_addr_width

C_CSR_AXI_DATA_WIDTH

32

= dma.csr_data_bytes * 8

C_DDR_AXI_ADDR_WIDTH

1~32

= dma.ddr_addr_width

C_DDR_AXI_BURST_WIDTH

1~8

= dma.ddr_burst_width

C_DDR_AXI_DATA_WIDTH

64, 128, 256, 512 (bits)

= dma.ddr_data_bytes * 8

C_DDR_AXI_THREAD_ID_WIDTH

2

= ddr_read_id_width

AXI Streaming Interfaces

For information about the FPGA AI Suite IP AXI streaming interfaces, refer to AXI Streaming Interface.