Cyclone® V Hard Processor System Technical Reference Manual

ID 683126
Date 8/28/2023
Public
Document Table of Contents

26.3.1.2.3. Extended Identifier Mask (MXtd)

  • 0= The extended frame identifier bit (Xtd) has no effect on the acceptance filtering
  • 1= The extended frame identifier bit (Xtd) is used for acceptance filtering

When 11-bit (standard) identifiers are used for a message object, the identifiers of received data frames are written to bits ID28 to ID18. For acceptance filtering, only these bits, together with mask bits Msk28 to Msk18, are used.