DS2154
CCR4: COMMON CONTROL REGISTER 4 (Address = A8 Hex)
(MSB)
(LSB)
TCM0
RLB
LLB
LIAIS
TCM4
TCM3
TCM2
TCM1
SYMBOL
POSITION
NAME AND DESCRIPTION
RLB
CCR4.7
Remote Loopback.
0 = loopback disabled
1 = loopback enabled
LLB
CCR4.6
CCR4.5
Local Loopback.
0 = loopback disabled
1 = loopback enabled
LIAIS
Line Interface AIS Generation Enable. See Figure 1-1 for
details.
0 = allow normal data from TPOSI/TNEGI to be transmitted at
TTIP and TRING
1 = force unframed all 1s to be transmitted at TTIP and TRING
TCM4
CCR4.4
Transmit Channel Monitor Bit 4. MSB of a channel decode
that determines which transmit channel data will appear in the
TDS0M register. See Section 7 for details.
TCM3
TCM2
TCM1
TCM0
CCR4.3
CCR4.2
CCR4.1
CCR4.0
Transmit Channel Monitor Bit 3.
Transmit Channel Monitor Bit 2.
Transmit Channel Monitor Bit 1.
Transmit Channel Monitor Bit 0. LSB of the channel decode.
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ROCHESTER [ Rochester Electronics ]
