There is a number of communication protocols that can be used in conjunction with the SpaceWire Standard (ECSS-E-ST-50-12), to provide a comprehensive set of services for onboard user applications. To distinguish between the various protocols a protocol identifier is used, as specified in ECSS-E-ST-50-51.
This Standard specifies the Remote Memory Access protocol (RMAP), which is one of these protocols that works over SpaceWire.
The aim of RMAP is to support reading from and writing to memory in a remote SpaceWire node. RMAP can be used to configure a SpaceWire network, control SpaceWire nodes, and to transfer data to and from SpaceWire nodes. RMAP is specified in this Standard.
This standard may be tailored for the specific characteristic and constrains of a space project in conformance with ECSS-S-ST-00.