DS2151 Dallas Semiconducotr, DS2151 Datasheet - Page 10

• Manufacturer Part Number: DS2151
• Description: T1 Single-Chip Transceiver
• Manufacturer: Dallas Semiconducotr

Note: for a detailed description of how the bits in TCR1 affect the transmit side formatter of the
DS2151Q, please see Figure 13-9.
LOTCMC
TLINK
TYEL
RBSE
TCPT
GB7S
TFPT
TBL
TCR1.7
TCR1.6
TCR1.5
TCR1.4
TCR1.3
TCR1.2
TCR1.1
TCR1.0
Loss Of Transmit Clock Mux Control. Determines whether
the transmit side formatter should switch to the ever present
RCLK if the TCLK input should fail to transition (see Figure 1-
1 for more details).
0=do not switch to RCLK if TCLK stops
1=switch to RCLK if TCLK stops
Transmit Framing Pass Through. (see note below)
0=Ft or FPS bits sourced internally
1=Ft or FPS bits sampled at TSER during F-bit time
Transmit CRC Pass Through. (see note below)
0=source CRC6 bits internally
1=CRC6 bits sampled at TSER during F-bit time
Robbed-Bit Signaling Enable. (see note below)
0=no signaling is inserted in any channel
1=signaling is inserted in all channels (the TTR registers can be
used to block insertion on a channel by channel basis)
Global Bit 7 Stuffing. (see note below)
0=allow the TTR registers to determine which channels
containing all 0s are to be Bit 7 stuffed
1=force Bit 7 stuffing in all 0 byte channels regardless of how
the TTR registers are programmed
TLINK Select. (see note below)
0=source FDL or Fs bits from TFDL register
1=source FDL or Fs bits from the TLINK pin
Transmit Blue Alarm. (see note below)
0=transmit data normally
1=transmit an unframed all 1s code at TPOS and TNEG
Transmit Yellow Alarm. (see note below)
0=do not transmit yellow alarm
1=transmit yellow alarm
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DS2151Q