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SAMA7G54 Hardware Design Considerations AN4598
Scope
Abbreviations
References
1 Design Checklists
1.1 Schematic Checklist
1.2 Layout Checklist
2 Schematic Checklist Description and Examples
2.1 Provide Adequate Voltage and Sufficient Current
2.2 Ensure Correct Power-up and Power-down Sequences
2.3 Ensure that the Power Supply Pins have Adequate Decoupling Capacitors
2.4 Check MPU Configuration
2.5 Check the DDR Controller Configuration
2.6 Check Other Interface Features
3 Layout Checklist Description and Examples
3.1 Check that the Board has an Uninterrupted GND Plane
3.2 Define a Layer Stack-up so that Line Impedances are Matched to Driver Impedances
3.3 Place Decoupling Capacitors as Close as Possible to IC Pins
3.4 Length-Match High-Speed Signals
3.5 Manufacturing Constraints
4 Appendix
4.1 Bit and Byte Swapping
4.2 Good Practices
5 Revision History
5.1 Rev. A - 06/2022
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