Data Sheet

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Atmel | SMART SAM D21 [DATASHEET]
Atmel-42181G–SAM-D21_Datasheet–09/2015
z Bit 9 – GCMD: PMBus Group Command
This bit enables PMBus group command support. When enabled, a STOP interrupt will be generated if the
slave has been addressed since the last STOP condition on the bus
.
0: Group command is disabled.
1: Group command is enabled.
This bit is not write-synchronized.
z Bit 8 – SMEN: Smart Mode Enable
This bit enables smart mode. When smart mode is enabled, acknowledge action is sent when DATA.DATA is
read.
0: Smart mode is disabled.
1: Smart mode is enabled.
This bit is not write-synchronized.
z Bits 7:0 – Reserved
These bits are unused and reserved for future use. For compatibility with future devices, always write these bits to
zero when this register is written. These bits will always return zero when read.