Hardware: Difference between revisions
Add DRAM trace annotation image |
Link to JEDEC MO-342 package spec |
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=== DRAM Layout === | === DRAM Layout === | ||
The footprint is BGA-441, | The footprint is BGA-441 (JEDEC [https://www.jedec.org/standards-documents/docs/mo-342a MO-342]), with ballout defined by JEDEC [https://www.jedec.org/standards-documents/docs/jesd209-5c JESD209-5C] (LPDDR5X). This annotated image shows the signals routed on the top layer of the PCB, for the IC south of the SoC. The signals routed here are CS0-1, CA0-6, and CK, for each of the four channels. | ||
[[File:Dram traces annotated.jpg|frameless|619x619px]] | [[File:Dram traces annotated.jpg|frameless|619x619px]] | ||