Altera First-In-First-Out Partitioner Manuel d'utilisateur télécharger pdf (Page 7)

Altera Corporation 5

Getting Started

Introduction

The FIFO Partitioner is a tool for mapping multiple FIFOs into a single

physical memory block. The ability to partition M-RAM blocks into

multiple FIFOs greatly enhances the utility of the TriMatrix memory

architecture. The FIFO Partitioner automatically generates the logic

necessary to time-domain-multiplex Stratix M-RAM blocks between

multiple user-specified FIFOs. Use the FIFO Partitioner for FIFO functions

that can't be fit efficiently into available M512 or M4K blocks.

Figure 1. User's View of a FIFO Partitioner Function Note (1)

Notes:

(1) Total number of FIFOs, n, should not exceed 10 for most designs. Up to 256 FIFOs

are possible for designs with moderate performance requirements.

M-RAM Block

FIFO 0

FIFO 1

FIFO n

Read-Side

FIFO Ports

Write-Side

FIFO Ports

1 2 3 4 5 6 7 8 9 10 11 12 ... 21 22

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Altera First-In-First-Out Partitioner Manuel d'utilisateur Page 7