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Data Sheet

ManualsBrandsSparkfun Electronics ManualsInertia Measurement Units9 Degrees of Freedom - Razor M0 IMU
451452453454455456457458459460
453
Atmel | SMART SAM D21 [DATASHEET]
Atmel-42181G–SAM-D21_Datasheet–09/2015
z Synchronization when written and read
z No synchronization
When executing an operation that requires synchronization, the corresponding Synchronization Busy bit in the
Synchronization Busy register (SYNCBUSY) will be set immediately, and cleared when synchronization is complete.
If an operation that requires synchronization is executed while the corresponding SYNCBUSY bit is one, a peripheral bus
error is generated.
The following bits need synchronization when written:
z Software Reset bit in the Control A register (CTRLA.SWRST). SYNCBUSY.SWRST is set to one while
synchronization is in progress.
z Enable bit in the Control A register (CTRLA.ENABLE). SYNCBUSY.ENABLE is set to one while synchronization is
in progress.
z Receiver Enable bit in the Control B register (CTRLB.RXEN). SYNCBUSY.CTRLB is set to one while
synchronization is in progress.
z Transmitter Enable bit in the Control B register (CTRLB.TXEN). SYNCBUSY.CTRLB is set to one while
synchronization is in progress.
Synchronization is denoted by the Write-Synchronized property in the register description.