LFE2-20E-5FN256I Lattice, LFE2-20E-5FN256I Datasheet - Page 10

Technical Support Assistance........................................................................................................................ 12-40

Revision History ............................................................................................................................................. 12-40

Appendix A. DDR Generation Using IPexpress with Lattice Diamond........................................................... 12-41

Introduction ...................................................................................................................................................... 13-1

Power Supply Sequencing ............................................................................................................................... 13-1

Power Calculator Hardware Assumptions........................................................................................................ 13-2

Activity Factor Calculation................................................................................................................................ 13-5

Ambient and Junction Temperatures and Airflow ............................................................................................ 13-5

Managing Power Consumption ........................................................................................................................ 13-5

Power Calculator Assumptions ........................................................................................................................ 13-6

Technical Support Assistance.......................................................................................................................... 13-7

Revision History ............................................................................................................................................... 13-7

Introduction ...................................................................................................................................................... 14-1

sysDSP Block Hardware .................................................................................................................................. 14-1

sysDSP Block Software ................................................................................................................................... 14-2

Targeting the sysDSP Block by Inference........................................................................................................ 14-9

sysDSP Blocks in the Report File .................................................................................................................. 14-11

Targeting the sysDSP Block Using Simulink.................................................................................................. 14-13

Targeting the sysDSP Block by Instantiating Primitives................................................................................. 14-14

sysDSP Block Control Signal and Data Signal Descriptions.......................................................................... 14-14

Technical Support Assistance........................................................................................................................ 14-15

Revision History ............................................................................................................................................. 14-15

Appendix A. DSP Block Primitives ................................................................................................................. 14-16

Appendix B. Using IPexpress for Diamond .................................................................................................... 14-24

Introduction ...................................................................................................................................................... 15-1

General Configuration Flow ............................................................................................................................. 15-1

Configuration Pins............................................................................................................................................ 15-2

DDR Generic......................................................................................................................................... 12-41

Configuration Tab.................................................................................................................................. 12-42

DDR_MEM ............................................................................................................................................ 12-42

Configuration Tab.................................................................................................................................. 12-43

Power-Up Sequencing ............................................................................................................................ 13-1

Power-Down Sequencing........................................................................................................................ 13-1

Power Sequencing Recommendations ................................................................................................... 13-1

Static Power or DC Power ...................................................................................................................... 13-2

Power Calculator..................................................................................................................................... 13-3

Power Calculation Equations .................................................................................................................. 13-3

Overview ................................................................................................................................................. 14-2

Targeting sysDSP Block Using IPexpress .............................................................................................. 14-2

MAP Report File.................................................................................................................................... 14-11

Place & Route (PAR) Report File.......................................................................................................... 14-12

Simulink Overview................................................................................................................................. 14-13

MULT18X18B........................................................................................................................................ 14-16

MULT18X18ADDSUBB......................................................................................................................... 14-16

MULT18X18ADDSUBSUMB................................................................................................................. 14-17

MULT18X18MACB................................................................................................................................ 14-19

MULT36X36B........................................................................................................................................ 14-20

MULT9X9B............................................................................................................................................ 14-21

MULT9X9ADDSUBB............................................................................................................................. 14-21

MULT9X9ADDSUBSUMB..................................................................................................................... 14-22

Invoking IPexpress for Diamond ........................................................................................................... 14-24

LatticeECP2/M Family Handbook

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