External Memory Interface Handbook Volume 3: Reference Material: For UniPHY-based Device Families

ID 683841
Date 3/06/2023
Public
Document Table of Contents

4.12.1.2. Avalon-MM Write-Only Port

The Avalon-MM write-only ports are standard Avalon-MM ports used to dispatch write operations. Each configured Avalon-MM write port consists of the signals listed in the following table.
Table 41.  Avalon-MM Write-Only Port Signals 

Name

Bits

Direction

Function

reset

1

In

Reset

clk

1

In

Clock

write

1

In

Indicates write transaction

address

32

In

Address of the transaction

writedata

32, 64, 128, or 256

In

Write data for a transaction

byteenable

4, 8, 16, 32

In

Byte enables for each write byte

waitrequest

1

Out

Indicates need for additional cycles to complete a transaction

burstcount

11

In

Transaction burst length