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5.1 Physical Interface
C141-E203-01EN 5-5
5.1.2.2 Primitives descriptions
The following table contains the primitive mnemonics and a brief description of
each.
Primitive Name Description
ALIGN Physical layer control Upon receipt of an ALIGN, the physical layer
readjusts internal operations as necessary to
perform its functions correctly.
EOF End of frame EOF marks the end of a frame.
PMACK Power management
acknowledge
Sent in response to a PMREQ_S or
PMREQ_P when a receiving node is prepared
to enter a power mode state.
PMNAK Power management
denial
Sent in response to a PMREQ_S or
PMREQ_P when a receiving node is not
prepared to enter a power mode state or when
power management is not supported.
PMREQ_P Power management
request to partial
This primitive is sent continuously until
PMACK or PMNAK is received. When
PMACK is received, current node (host or
device) will stop PMREQ_P and enters the
Partial power management state.
PMREQ_S Power management
request to Slumber
This primitive is sent continuously until
PMACK or PMNAK is received. When
PMACK is received, current node (host or
device) will stop PMREQ_S and enters the
Slumber power management state.
R_ERR Reception error Current node (host or device) detected error in
received payload.
R_OK Reception with no error Current node (host or device) detected no
error in received payload.
R_RDY Receiver ready Current node (host or device) is ready to
receive payload.
SOF Start of frame Start of a frame. Payload and CRC follow to
EOF.
SYNC Synchronization Synchronizing primitive - always idle.
X_RDY Transmission data ready Current node (host or device) has payload
ready for transmission.