STLC5432 ST Microelectronics, STLC5432 Datasheet - Page 34

• Manufacturer Part Number: STLC5432
• Description: 2Mbit CEPT & PRIMARY RATE CONTROLLER DEVICE
• Manufacturer: ST Microelectronics

STLC5432
Figure 13: Synchronization Algorithm
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YES
NO
TIMER OUT 400ms STARTS.
CRC4 BLOCKS RECEIVED
MULTIFRAME RESEARCH
DOUT DELIVERS ”ALL 1s”
ALIGNMENT RECOVERY
VALIDATED TO COUNT
VALIDATED TO COUNT
ECR 1/2 COUNTER IS
DOUT IS VALIDATED.
FCR 1/2 COUNTER IS
FRAME RESEARCH
RECEIVED FALSE
LOSS OF FRAME
E BIT RECEIVED
MULTI FRAME
CRC4 BLOCK
Ax = 1; Ex = 0
Ax = 0; Ex = 0
ALIGNMENT
ALIGNMENT
RECOVERY
MFR = 1
LOF = 1
LOF = 0
FRAME
FRAME
FALSE
AT ”0”
LOST
915
YES
YES
YES
NO
NO
NO
ALIGNMENT
YES
FRAME
LOST
VALIDATED TO COUNT BITS
OF FRAME ALIGNMENT
FCR 1/2 COUNTER IS
SIGNAL RECEIVED
ALIGNMENT
OUT 400ms
MFNR = 1
EXPIRED
FRAME
FALSE
LOST
TIME
NO
YES
YES
D93TL059B
NO
NO