ADSP-218xN
TABLE OF CONTENTS
General Description ................................................. 3
Architecture Overview ........................................... 3
Modes Of Operation .............................................. 5
Interrupts ........................................................... 5
Low-power Operation ............................................ 6
System Interface ................................................... 7
Reset .................................................................. 8
Power Supplies ..................................................... 8
Memory Architecture ............................................ 9
Bus Request and Bus Grant ................................... 14
Flag I/O Pins ..................................................... 15
Instruction Set Description ................................... 15
Development System ........................................... 15
Additional Information ........................................ 17
Pin Descriptions .................................................... 18
Memory Interface Pins ......................................... 19
Terminating Unused Pins ..................................... 19
Specifications ........................................................ 22
Recommended Operating Conditions ...................... 22
Electrical Characteristics ....................................... 22
Absolute Maximum Ratings .................................. 23
ESD Sensitivity ................................................... 23
ESD Diode Protection .......................................... 24
Power Dissipation ............................................... 24
Environmental Conditions .................................... 25
Test Conditions .................................................. 25
Timing Specifications .......................................... 26
LQFP Package Pinout .......................................... 40
BGA Package Pinout ........................................... 42
Outline Dimensions ............................................... 45
Surface Mount Design .......................................... 46
Ordering Guide ..................................................... 47
REVISION HISTORY
8/06—Rev. 0 to Rev. A
Miscellaneous Format Updates.......................... Universal
Applied Corrections or Additional Information to:
Clock Signals ....................................................... 8
External Crystal Connections .................................. 8
ADSP-2185 Memory Architecture ............................ 9
Electrical Characteristics ....................................... 22
Absolute Maximum Ratings ................................... 23
ESD Diode Protection .......................................... 24
Memory Read ..................................................... 31
Memory Write .................................................... 32
Serial Ports ........................................................ 33
Outline Dimensions ............................................. 45
Ordering Guide .................................................. 47
Rev. A
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Page 2 of 48
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August 2006
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