Datasheet

EMIF_nCS[0]

EMIF_nCAS

EMIF_nRAS

EMIF_CLK

EMIF_CKE

EMIF_nCS[5:2]

EMIF_nOE

EMIF_WAIT

EMIF_nWE

EMIF_BA[1:0]

EMIF_nDQM[x:0]

EMIF_D[x:0]

EMIF_A[x:0]

EMIF

CPU

EDMA

Master

Peripherals

SDRAM

interface

Asynchronous

interface

Shared SDRAM

and asynchronous

interface

EMIF_A_RW

Introduction

www.ti.com

21.1.3 Functional Block Diagram

Figure 21-1 illustrates the connections between the EMIF and its internal requesters, along with the

external EMIF pins. Section 21.2.2 contains a description of the entities internal to the SoC that can send

requests to the EMIF, along with their prioritization. Section 21.2.3 describes the EMIF external pins and

summarizes their purpose when interfacing with SDRAM and asynchronous devices.

Figure 21-1. EMIF Functional Block Diagram

780

External Memory Interface (EMIF) SPNU563–May 2014

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