Datasheet

DS26518 8-Port T1/E1/J1 Transceiver
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11.4 E1 Transmitter Functional Timing Diagrams
Figure 11-24. E1 Transmit-Side Timing
Figure 11-25. E1 Transmit-Side Boundary Timing (Elastic Store Disabled)
1 2 3 4 5 6 7 8 9 1011 12
TSSYNCIOn
FRAME#
TSYNCn
1
TSYNCn
2
13
14 15 16
1 2 3 4 5
14 15 16
6 7 8 9 10
NOTE 1: TSYNCn IN FRAME MODE (TIOCR.0 = 0).
NOTE 2: TSYNCn IN MULTIFRAME MODE (TIOCR.0 = 1).
NOTE 3: THIS DIAGRAM ASSUMES BOTH THE CAS MF AND THE CRC-4 MF BEGIN WITH THE TAF FRAME.
LSB MSB LSB MSB
CHANNEL 1 CHANNEL 2
CHANNEL 1 CHANNEL 2
A
B C D
TCLKn
TSERn
TSYNCn
1
TSYNCn
2
TSIGn
TCHCLKn
TCHBLKn
3
Si 1
A
Sa4 Sa5 Sa6 Sa7 Sa8
D
NOTE 1: TSYNCn IN THE OUTPUT MODE (TIOCR.2 = 1).
NOTE 2: TSYNCn IN THE INPUT MODE (TIOCR.2 = 0).
NOTE 3: TCHBLKn IS PROGRAMMED TO BLOCK CHANNEL 2.
NOTE 4: THE SIGNALING DATA AT TSIGn DURING CHANNEL 1 IS NORMALLY OVERWRITTEN IN THE TRANSMIT
FORMATTER WITH THE CAS MF ALIGNMENT NIBBLE (0000).
NOTE 5: SHOWN IS A TNAF FRAME BOUNDARY.