J1939/21 specifies the datalink layer for a J1939 network and is the only datalink layer published and supported for J1939. This specification is responsible for defining the bit encoding of 29-bit CAN identifiers.
Also included in this specification is the encoding for source address (SA), destination address (DA), priority (P), and parameter group number (PGN).
Global Customers
Protocol Stacks
CAN Device Drivers
Flash Bootloaders
Microcontrollers & DSPs
Real Time Operating Systems