5.1 Physical Interface

5.1.2.2Primitives 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.

 

 

 

CONT

Continue repeating

The CONT primitive allows long strings of

 

previous primitive

repeated primitives to be eliminated. The

 

 

CONT primitive implies that the previously

 

 

received primitive be repeated as long as

 

 

another primitive is not received.

 

 

 

EOF

End of frame

EOF marks the end of a frame.

 

 

 

PMACK

Power management

Sent in response to a PMREQ_S or

 

acknowledge

PMREQ_P when a receiving node is prepared

 

 

to enter a power mode state.

 

 

 

HOLD

Hold data transmission

HOLD is transmitted in place of payload data

 

 

within a frame when the transmitter does not

 

 

have the next payload data ready for

 

 

transmission. HOLD is also transmitted on the

 

 

backchannel when a receiver is not ready to

 

 

receive additional payload data.

 

 

 

HOLDA

Hold acknowledge

This primitive is sent by a transmitter as long

 

 

the HOLD primitive is received by its

 

 

companion receiver.

 

 

 

PMNAK

Power management

Sent in response to a PMREQ_S or

 

denial

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

This primitive is sent continuously until

 

request to partial

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

This primitive is sent continuously until

 

request to slumber

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.

 

 

 

C141-E249

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Fujitsu MHW2060BS, MHW2100BS, MHW2080BS, MHW2120BS, MHW2040BS Align, Cont, Eof, Pmack, Holda, Pmnak, Pmreqp, Pmreqs, Rerr