Medium Access Control (MAC) and Physical Layer (PHY) - CISE

4-June-07 P1901_PRO_016_r0
Legend
TDR state (master side)
Transition event
Master actions associated to the state
No response to
MAX_ALIVE_TOKENS
TDR polling tokens
Idle
Master regularly sends TDR polling
tokens to this TDR. No data token is
transmitted to this TDR.
Master does not manage this state.
Regularly, the master broadcasts an access frame
to discover/recover Unregistered nodes.
Unregistered
The TDR replies affirmatively
to a TDR polling token
The TDR does
not make use of the time
granted by
its master
Figure 27 TDR states – Master side
Access protocol
completed
Submission page 91 UPA-OPERA
Active
Master sends data
tokens to this TDR.
No polling token
is sent to this TDR.