Motorola DSP56009 User Manual page 86

24-bit digital signal processor
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External Memory Interface
4.1
INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-3
4.2
EMI PROGRAMMING MODEL . . . . . . . . . . . . . . . . . . . . . . . 4-5
4.3
EMI ADDRESS GENERATION . . . . . . . . . . . . . . . . . . . . . . 4-23
4.4
DRAM REFRESH . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-31
4.5
EMI OPERATING CONSIDERATIONS. . . . . . . . . . . . . . . . 4-38
4.6
DATA-DELAY STRUCTURE . . . . . . . . . . . . . . . . . . . . . . . . 4-46
4.7
EMI-TO-MEMORY CONNECTION . . . . . . . . . . . . . . . . . . . 4-48
4.8
EMI TIMING. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-50
4-2
DSP56009 User's Manual
MOTOROLA

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