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Motorola MPC8260 User Manual

Page 320

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10-44

MPC8260 PowerQUICC II UserÕs Manual

MOTOROLA

Part III. The Hardware Interface

Figure 10-31. SDRAM Four-Beat Burst Read, Page Miss, CL = 3

Figure 10-32. SDRAM Single-Beat Write, Page Hit

Figure 10-33. SDRAM Three-Beat Burst Write, Page Closed

CLK

ALE

CS

SDRAS

SDCAS

MA[0Ð11]

WE

DQM

Data

D0

Z

A10 = 1

BS

*

* BSÑBank select according to SDRAM organization. A10 = 1 means not all banks will be precharged.

Row

CAS Latency = 3

Col

D1

D2

D4

Deactivate

Activate

CLK

ALE

CS

SDRAS

SDCAS

MA[0Ð11]

Column

WE

DQM

Data

D0

CLK

ALE

CS

SDRAS

SDCAS

MA[0Ð11]

Row

Column

WE

DQM

Data

D0

D1

D2