SA2030 Datasheet, PDF (5/12 Pages) Sames – PCM FRAME ALIGNER

LOSS AND RECOVERY OF FRAME ALIGNMENT
SA2030
CONDITIONS
R
- Good FAS Received
R
- One or more errors in FAS
M
- Bit 2 of service word = 1 (Good SW)
M
- Bit 2 of service word = 0 (Bad SW)
UXS - Unsynchronised stated U0S, U1S or U2S
M2S - Two service word errors received state
STATES
U0S -
U1S -
U2S -
Unsynchronised, zero frames OK state
Unsynchronised, one frame OK state
Unsynchronised, two frame OK state
S0S -
S1S -
S2S -
Synchronised, zero FAS errors state
Synchronised, one FAS error state
Synchronised, two FAS errors state
M0S -
M1S -
M2S -
Zero service word errors state
One service word error state
Two service word errors state
sames
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