# 16-bit Sub-channel Burst Framing > Source-anchored research for 16-bit Sub-channel Burst Framing. Run status: COMPLETED. Parent: [16-Bit Sub-Channel Bursts and Non-Sequential Tensor Bank Interleaving](https://llms-explorer.com/tree/subchannel-bursts-and-bank-interleaving/) · 1 facets · 2 facts · page: https://llms-explorer.com/tree/16-bit-sub-channel-burst-framing/ ## Facts and statements - GDDR7 divides each 32-bit channel into two independent 16-bit sub-channels, reducing burst payload size to 32 bytes (BL16) or 64 bytes (BL32) per transaction. (high confidence) — [source](https://www.jedec.org/standards-documents/docs/jesd239) - The 32-byte minimum burst length directly matches L2 cacheline fill requirements for fine-grained tensor activations without fetching unneeded contiguous memory bytes. (high confidence) — [source](https://www.jedec.org/standards-documents/docs/jesd239)