DS2196 Dallas Semiconducotr, DS2196 Datasheet - Page 32

• Manufacturer Part Number: DS2196
• Description: T1 Dual Framer LIU
• Manufacturer: Dallas Semiconducotr

TCR1A: TRANSMIT CONTROL REGISTER 1 FRAMER A (Address = 35 Hex)
NOTE:
For a description of how the bits in TCR1A affect the transmit side formatter, see Figure 21-7.
LOTCMC
(MSB)
SYMBOL
LOTCMC
TFDLS
RBSE
TYEL
TCPT
GB7S
TFPT
TBL
TFPT
POSITION
TCR1A.7
TCR1A.6
TCR1A.5
TCR1A.4
TCR1A.3
TCR1A.2
TCR1A.1
TCR1A.0
TCPT
NAME AND DESCRIPTION
Loss Of Transmit Clock Mux Control. Determines whether
the transmit side of Formatter A should switch to MCLK if the
TCLK input should fail to transition (see Figure 1.1 for details).
0 = do not switch to MCLK if TCLKA stops
1 = switch to MCLK if TCLKA stops
Transmit F–Bit Pass Through. (see note below)
0 = F bits sourced internally
1 = F bits sampled at TSERA
Transmit CRC Pass Through. (see note below)
0 = source CRC6 bits internally
1 = CRC6 bits sampled at TSERA 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 0’s are to be Bit 7 stuffed
1 = force Bit 7 stuffing in all zero byte channels regardless of
how the TTR registers are programmed
TFDL Register Select. (see note below)
0 = source FDL or Fs bits from the internal TFDL register
(legacy FDL support mode)
1 = source FDL or Fs bits from the internal HDLC/BOC
controller or the TLINKA pin
Transmit Blue Alarm. (see note below)
0 = transmit data normally
1 = transmit an unframed all 1’s code at TPOSOA and
TNEGOA
Transmit Yellow Alarm. (see note below)
0 = do not transmit yellow alarm
1 = transmit yellow alarm
RBSE
32 of 157
GB7S
TFDLS
TBL
(LSB)
TYEL
DS2196