The BMX EIA 0100 module operates according to the master/slave modes. It only controls exchanges on the Interface bus.
The AS-Interface standard sets several operating levels offered by the master:
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Profile M0 and M0e - Minimum Standard Master: the master only puts forward the configuration of slaves connected to the bus on power-up and only input/output exchanges
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Profile M1 and M1e - Full Standard Master: this profile covers all the operating functions set by the AS-Interface standard
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Profile M2 and M2e - Reduced Standard Master: this profile corresponds to profile M0 operating functions with a slave-parametrizing option
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Profile M3: Full extended master: data I/O, parameter and all other functions at host interface, includes support of Combined Transaction type 1
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M4 profile: Version 3.0 extended master plus support for the Combined Transaction types 2, 3, 4 and 5
NOTE: The “e” master profiles support the extended profiles.
The module includes data fields which are used to manage the lists of slaves and I/O data images. This information is stored in a volatile memory.