EtronTech

EM68932DVKB

Etron Confidential

29

Rev. 1.0

Aug. 2009

Figure 20. Read to precharge

CL = 2

Don’t Care

READ

NOP

PRE

NOP

NOP

ACT

BA, Col n

Bank

(a or all)

BA, Row

CL = 3

Command

Address

DQS

DQ

DQS

DQ

CK

CK

(1) DO n = Data Out from column n

(2) Cases shown are either uninterrupted burst of 4, or interrupted bursts of 8.

(3) Shown with nominal tAC, tDQSCK and tDQSQ.

(4) Precharge may be applied at (BL/2) tCK after the READ command.

(5) Note that Precharge may not be issued before tRAS ns after the ACTIVE command for applicable banks.

(6) The ACTIVE command may be applied if tRC has been met.

DO n

DO n

Figure 21. Burst Terminate Command

(High)

Don’t Care

A0-A11

BA0,BA1

CK

CK

CKE

CS

RAS

CAS

WE