Datasheet
DS26518 8-Port T1/E1/J1 Transceiver
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Register Name:
T1TFDL
Register Description:
Transmit FDL Register
Register Address:
162h + (200h x (n - 1)) : where n = 1 to 8
Bit # 7 6 5 4 3 2 1 0
Name TFDL7 TFDL6 TFDL5 TFDL4 TFDL3 TFDL2 TFDL1 TFDL0
Default 0 0 0 0 0 0 0 0
Note: Also used to insert Fs framing pattern in D4 framing mode.
The Transmit FDL Register (T1TFDL) contains the Facility Data Link (FDL) information that is to be inserted on a
byte basis into the outgoing T1 data stream. The LSB is transmitted first. In D4 mode, only the lower six bits are
used.
Bit 7: Transmit FDL Bit 7 (TFDL7). MSB of the Transmit FDL Code.
Bit 6: Transmit FDL Bit 6 (TFDL6)
Bit 5: Transmit FDL Bit 5 (TFDL5)
Bit 4: Transmit FDL Bit 4 (TFDL4)
Bit 3: Transmit FDL Bit 3 (TFDL3)
Bit 2: Transmit FDL Bit 2 (TFDL2)
Bit 1: Transmit FDL Bit 1 (TFDL1)
Bit 0: Transmit FDL Bit 0 (TFDL0). LSB of the Transmit FDL Code.
Register Name:
T1TBOC
Register Description:
Transmit BOC Register
Register Address:
163h + (200h x (n - 1)) : where n = 1 to 8
Bit # 7 6 5 4 3 2 1 0
Name — — TBOC5 TBOC4 TBOC3 TBOC2 TBOC1 TBOC0
Default 0 0 0 0 0 0 0 0
Bit 5: Transmit BOC Bit 5 (TBOC5). MSB of the transmit BOC code.
Bit 4: Transmit BOC Bit 4 (TBOC4)
Bit 3: Transmit BOC Bit 3 (TBOC3)
Bit 2: Transmit BOC Bit 2 (TBOC2)
Bit 1: Transmit BOC Bit 1 (TBOC1)
Bit 0: Transmit BOC Bit 0 (TBOC0). LSB of the transmit BOC code.










