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

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4-June-07 P1901_PRO_016_r0<br />

7<br />

Reserved<br />

6<br />

Type<br />

Single Validity<br />

Always MUST be set to 0<br />

5<br />

Reserved<br />

Always MUST be set to 0<br />

4<br />

5F<br />

73<br />

EE<br />

E2<br />

Validity [7:0]<br />

Submission page 117 UPA-OPERA<br />

3<br />

Destination Port<br />

Frame Priority<br />

Session ID [7:0]<br />

Always MUST be set to 0<br />

Unused Frame Symbols [7:0]<br />

Received words [15:8]<br />

Received words [7:0]<br />

Number of Downstream Nodes<br />

Reserved<br />

Reserved<br />

Always MUST be set to 0<br />

Distributor Sequence Number Always MUST be set to 0<br />

4.4.2.3 Silence Token<br />

2<br />

Direction Reserved<br />

Transmission<br />

in HURTO<br />

Validity [11:8]<br />

Unused Frame Symbols [12:8]<br />

Maximum Number of Hops<br />

No Destination<br />

Port<br />

Figure 42 Data Token<br />

The Silence Token includes the following fields of the data token:<br />

- Preamble – 32 bits. The preamble is equal to 0x5F73EEE2.<br />

- Type – 4 bits. Type shall be SILENCE (11).<br />

1<br />

Alow Channel<br />

Estimation Fr.<br />

0<br />

Send Ch. Est.<br />

Fr. Next<br />

Always MUST be set to 0<br />

preamble<br />

- Unused frame symbols (13 bits). Unused symbols in the current frame, compared to the Validity indicated<br />

in the token announce of the same transmission frame.

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