BLE Stack: L2CAP


Logical Link Control and Adaptation Protocol (L2CAP)

Segments large data packets into smaller packets

Reassembles segmented data into larger packets

Determines packet size by the Maximum Transmission Unit

Maximum Transmission Unit (MTU)

The largest possible size for data packets

Segmentation and reassembly improve transmission efficiency by allowing larger MTUs

PSoC 4 BLE supports a MTU size of 23 to 512 Bytes

The PSoC 4 BLE L2CAP layer is integrated in the BLE Stack