Figure 12 – Texas Instruments TMS320DM646X DMSOC User Manual

Page 32

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background image

t

RC

(m)

Strobe

Setup

Hold

EM_CS

EM_A[21:0]

EM_BA[1:0]

EM_OE

EM_D[15:0]

t

ACC

(m)

t

SU

t

H

t

COD

(m)

t

OH

(m)

Use Cases

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Figure 12. Timing Waveform of an ASRAM Read

For a write access,

Table 18

lists the AC timing specifications that must be satisfied.

Table 18. ASRAM Input Timing Requirements for a Write

Parameter

Description

t

WP

Write Pulse width

t

AW

Address valid to end of Write

t

DS

Data Setup time

t

WR

Write Recovery time

t

DH

Data Hold time

t

WC

Write Cycle time

32

Asynchronous External Memory Interface (EMIF)

SPRUEQ7C – February 2010

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