Datasheet

Bit 0 – DRE Data Register Empty Interrupt Enable
Writing '0' to this bit has no effect.
Writing '1' to this bit will clear the Data Register Empty Interrupt Enable bit, which disables the Data
Register Empty interrupt.
Value Description
0
Data Register Empty interrupt is disabled.
1
Data Register Empty interrupt is enabled.
SAM D21 Family
SERCOM SPI – SERCOM Serial Peripheral Interface
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Datasheet Complete
DS40001882D-page 535