ARINC Specification 661P1-9:2024

ARINC 661 defines logical interfaces to Cockpit Display Systems (CDS) used in all types of aircraft installations. The CDS provides graphical and interactive services to user applications within the flight deck environment. When combined with data from user applications, it displays graphical images to the flight deck crew. The document emphasizes the need for independence between aircraft systems and the CDS. This document defines the interface between the avionics equipment and display system graphics generators. This document does not specify the "look and feel" of any graphical information, and as such does not address human factors issues. These are defined by the airline flight operations community. Supplement 9 adds numerous changes and additions:





Restructuring of the document for ease of use


Addition of GpVertexBuffer and GpVertexRender Widgets


Formalization of the Super Layer concept


Generalization of input device text


Timeout values for things like popups


Extended Block protocol


Parent/child relationships across levels of hierarchy


Clean up of ExcludedRegionsExtension


Map clarifications


Updated widget guidance


MapBoundary and ExcludedRegionsExtension clarifications


String length fields in event structures


Correction of Supplement 8 Errata


Symbol command example issues


Ability for UA to request widget parameter values from CDS


Array Parameters including discussing race conditions associated with updating the array content and “NumberOf” parameters


New run-time parameter and event for EditBox widgets


MapGrid related updates


CursorMapEventsExtension


Map buffer of item parameter cleanup


Addition of glossary definitions for widget level terms used in the document


EditBoxNumericBCD cleanup


Map Management and MapGrid cleanup


Additional key codes