Atmel Xplained Pro Evaluation Kit for the ATSAMD21J18A Microcontroller ATSAMD21-XPRO ATSAMD21-XPRO Data Sheet

Product codes
ATSAMD21-XPRO
Page of 1018
530
Atmel | SMART SAM D21 [DATASHEET]
Atmel-42181C–SAM-D21_Datasheet–07/2014
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.