Datasheet

DS26518 8-Port T1/E1/J1 Transceiver
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Figure 11-13. T1 Transmit-Side 2.048MHz Boundary Timing (Elastic Store Enabled)
LSB
F
3
LSB MSB
CHANNEL 1 CHANNEL 32
A
B C/A D/B
A
B C/A D/B
TSYSCLKn
TSERn
1
TSSYNCIOn
TSIGn
TCHCLKn
TCHBLKn
2
CHANNEL 31
A
CHANNEL 31 CHANNEL 32 CHANNEL 1
NOTE 1: TSERn DATA IN CHANNELS 1, 5, 9, 13, 17, 21, 25, AND 29 IS IGNORED.
NOTE 2: TCHBLKn IS PROGRAMMED TO BLOCK CHANNELS 31 AND 1.
NOTE 3: THE F-BIT POSITION FOR THE T1 FRAME IS SAMPLED AND PASSED THROUGH THE TRANSMIT-SIDE
ELASTIC STORE INTO THE MSB BIT POSITION OF CHANNEL 1. (NORMALLY THE TRANSMIT-SIDE FORMATTER
OVERWRITES THE F-BIT POSITION UNLESS THE FORMATTER IS PROGRAMMED TO PASS THROUGH THE F-BIT
POSITION).