Altera DDR3 SDRAM High-Performance Controller and ALTMEMP Manuel d'utilisateur télécharger pdf (Page 10)

15–10 Chapter 15: Introduction to ALTMEMPHY IP

Document Revision History

External Memory Interface Handbook November 2012 Altera Corporation

Volume 3: Reference Material

OpenCore Plus Time-Out Behavior

OpenCore Plus hardware evaluation can support the following two modes of

operation:

■ Untethered—the design runs for a limited time

■ Tethered—requires a connection between your board and the host computer. If

tethered mode is supported by all megafunctions in a design, the device can

operate for a longer time or indefinitely

All megafunctions in a device time-out simultaneously when the most restrictive

evaluation time is reached. If there is more than one megafunction in a design, a

specific megafunction's time-out behavior may be masked by the time-out behavior of

the other megafunctions.

1 For MegaCore functions, the untethered time-out is 1 hour; the tethered time-out

value is indefinite.

Your design stops working after the hardware evaluation time expires and the

local_ready

output goes low.

Document Revision History

Table 15–10 lists the revision history for this document.

Table 15–10. Document Revision History

Date Version Changes

November 2012 1.2 Changed chapter number from 13 to 15.

June 2012 1.1 Added Feedback icon.

November 2011 1.0

Combined Release Information, Device Family Support, Features list, and Unsupported

Features list for DDR, DDR2, and DDR3.

1 2 3 4 5 6 7 8 9 10

Pas de commentaire

Altera DDR3 SDRAM High-Performance Controller and ALTMEMP Manuel d'utilisateur Page 10