Datasheet

DS26518 8-Port T1/E1/J1 Transceiver
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11.3 E1 Receiver Functional Timing Diagrams
Figure 11-17. E1 Receive-Side Timing
Figure 11-18. E1 Receive-Side Boundary Timing (Elastic Store Disabled)
FRAME#
1
2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 1
RSYNCn
2
RSYNCn
1
RFSYNCn
NOTE 1: RSYNCn IN FRAME MODE (RIOCR.0 = 0).
NOTE 2: RSYNCn IN MULTIFRAME MODE (RIOCR.0 = 1).
NOTE 3: THIS DIAGRAM ASSUMES THE CAS MF BEGINS IN THE RAF FRAME.
CHANNEL 32
CHANNEL 1 CHANNEL 2
CHANNEL 32
CHANNEL 1 CHANNEL 2
RCLKn
RSERn
RSYNCn
RFSYNCn
RSIGn
RCHCLKn
1
RCHBLKn
1
C D
A
LSB
MSB
A
B
Si 1
A
Sa4 Sa5 Sa6 Sa7 Sa8
B
Note 3
NOTE 1: RCHBLKn IS PROGRAMMED TO BLOCK CHANNEL 1.
NOTE 2: SHOWN IS AN RNAF FRAME BOUNDARY.
NOTE 3. RSIGn NORMALLY CONTAINS THE CAS MULTIFRAME ALIGNMENT NIBBLE (0000) IN CHANNEL 1.