The P2_PLUS_WRITE command is used to send a command and its associated data to:

• A specific page and phase (valid phases are 00h – 03h),
• All phases (PHASE = FFh) in specific page,
• A specific phase in all pages (PAGE = FFh),
• Or all phases in all pages (PAGE = FFh and PHASE = FFh)

within the addressed device without altering the value of the PAGE or PHASE command after the P2_PLUS_WRITE command is completed.

The only valid PAGE settings are 00h and FFh, which are treated the same. For any PAGE settings outside the valid range, the primary device will set the IVC bit and assert SMBALERT#. The PHASE setting can be set to the unique phase determined by STACK_POSITION in STACK_CONFIG or all phases (PHASE = FFh). For any PHASE settings outside the valid range, the primary device will set the IVC bit and assert SMBALERT#.

Adds 1 byte to whatever command is being written compared to the P2_PLUS_WRITE

Return to Supported PMBus Commands.