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Answers to Top FAQs
1. Hyperflex® FPGA Architecture Introduction
2. Hyperflex® Architecture RTL Design Guidelines
3. Compiling Hyperflex® Architecture Designs
4. Design Example Walk-Through
5. Retiming Restrictions and Workarounds
6. Optimization Example
7. Hyperflex® Architecture Porting Guidelines
8. Appendices
9. Hyperflex® Architecture High-Performance Design Handbook Archive
10. Hyperflex® Architecture High-Performance Design Handbook Revision History
2.4.2.1. High-Speed Clock Domains
2.4.2.2. Restructuring Loops
2.4.2.3. Control Signal Backpressure
2.4.2.4. Flow Control with FIFO Status Signals
2.4.2.5. Flow Control with Skid Buffers
2.4.2.6. Read-Modify-Write Memory
2.4.2.7. Counters and Accumulators
2.4.2.8. State Machines
2.4.2.9. Memory
2.4.2.10. DSP Blocks
2.4.2.11. General Logic
2.4.2.12. Modulus and Division
2.4.2.13. Resets
2.4.2.14. Hardware Re-use
2.4.2.15. Algorithmic Requirements
2.4.2.16. FIFOs
2.4.2.17. Ternary Adders
5.2.1. Insufficient Registers
5.2.2. Short Path/Long Path
5.2.3. Fast Forward Limit
5.2.4. Loops
5.2.5. One Critical Chain per Clock Domain
5.2.6. Critical Chains in Related Clock Groups
5.2.7. Complex Critical Chains
5.2.8. Extend to locatable node
5.2.9. Domain Boundary Entry and Domain Boundary Exit
5.2.10. Critical Chains with Dual Clock Memories
5.2.11. Critical Chain Bits and Buses
5.2.12. Delay Lines
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2.4.2.11. General Logic
Avoid using one-line logic functions that while structurally sound, generate multiple levels of logic. The only exception to this is adding a couple of pipeline registers on either side, so that Hyper-Retiming can retime through the cloud of logic.