EtronTech

EM68932DVKB

Etron Confidential

26

Rev. 1.0

Aug. 2009

Figure 16. Non-Consecutive Read Bursts

CL = 2

Don’t Care

READ

NOP

NOP

READ

NOP

NOP

BA, Col n

BA, Col b

CL = 3

Command

Address

DQS

DQ

DQS

DQ

CK

CK

(1) DO n (or b) = Data Out from column n (or column b)

(2) BA Col n (b) = Bank A, Column n (b)

(3) Burst Length = 4; 3 subsequent elements of Data Out appear in the programmed order following DO n (b)

(4) Shown with nominal tAC, tDQSCK and tDQSQ

DO n

DO b

DO n

Figure 17. Random Read Bursts

CL = 2

Don’t Care

DO n

DO n’

DO x

READ

READ

READ

READ

NOP

NOP

BA, Col n

BA, Col x

BA, Col b

BA, Col g

CL = 3

DO n

DO n’

DO x

Command

Address

DQS

DQ

DQS

DQ

CK

CK

(1) DO n, etc. = Data Out from column n, etc.

n’, x’, etc. = Data Out elements, according to the programmed burst order

(2) BA, Col n = Bank A, Column n

(3) Burst Length = 2, 4 or 8 in cases shown (if burst of 4 or 8 , the burst is interrupted)

(4) Reads are to active rows in any banks

DO b’

DO g’

DO g

DO b’

DO b

DO x’

DO x’

DO b