DS26334 Dallas Semiconductor, DS26334 Datasheet - Page 71

• Manufacturer Part Number: DS26334
• Description: E1/T1/J1 Shortand Long-Haul Line Interface Unit
• Manufacturer: Dallas Semiconductor

Register Name:
Register Description:
Register Address (LIUs 1–8):
Bit #
Name
Default
Bit 7: Receiver Transformer Turns Ratio Channel 2 (RTR2). If this bit is set the turns ratio is 1:1 on the receiver
side. This bit should be set when a 1:1 receiver transformer is used and is recommended when using long-haul
mode (SHLHS2). Note that in order to use fully internal receive impedance termination, a 1:1 transformer must be
used and this bit must be set to 1.
Bits 6 to 4: Channel 2 Receive Sensitivity/Monitor Select [2:0] (C2RSM[2:0]). Bits C2RSM[2:0] are used to
select the receiver sensitivity level and the monitor mode resistive gain. See
Bit 3: Receiver Transformer Turns Ratio Channel 1 (RTR1). If this bit is set the turns ratio is 1:1 on the receiver
side. This bit should be set when a 1:1 receiver transformer is used and is recommended when using long-haul
mode (SHLHS1). Note that in order to use the fully internal receive impedance termination, a 1:1 transformer must
be used and this bit must be set to 1.
Bits 2 to 0: Channel 1 Receive Sensitivity/Monitor Select [2:0] (C1RSM[2:0]). Bits C1RSM[2:0] are used to
select the receiver sensitivity level and the monitor mode resistive gain. See
Register Address (LIUs 9–16):
Bit #
Name
Default
Bit 7: Receiver Transformer Turns Ratio Channel 10 (RTR10). If this bit is set the turns ratio is 1:1 on the
receiver side. This bit should be set when a 1:1 receiver transformer is used and is recommended when using long-
haul mode (SHLHS10). Note that in order to use fully internal receive impedance termination, a 1:1 transformer
must be used and this bit must be set to 1.
Bits 6 to 4: Channel 10 Receive Sensitivity/Monitor Select [2:0] (C10RSM[2:0]). Bits C10RSM[2:0] are used to
select the receiver sensitivity level and the monitor mode resistive gain. See
Bit 3: Receiver Transformer Turns Ratio Channel 9 (RTR9). If this bit is set the Turns Ratio is 1:1 on the
receiver side. This bit should be set when a 1:1 receiver transformer is used and is recommended when using long-
haul mode (SHLHS9). Note that in order to use the fully internal receive impedance termination, a 1:1 transformer
must be used and this bit must be set to 1.
Bits 2 to 0: Channel 9 Receive Sensitivity/Monitor Select [2:0] (C9RSM[2:0]). Bits C9RSM[2:0] are used to
select the receiver sensitivity level and the monitor mode resistive gain. See
RTR10
RTR2
7
0
7
0
C10RSM2
C2RSM2
6
0
6
0
RSMM1
Receive Sensitivity Monitor Mode 1 Register
08h
28h
C10RSM1
C2RSM1
DS26334 3.3V, 16-Channel, E1/T1/J1 Short/Long-Haul Line Interface Unit
5
0
5
0
C10RSM0
C2RSM0
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4
0
4
0
RTR1
RTR9
3
0
3
0
Table
Table
Table
Table
C1RSM2
C9RSM2
0
0
2
2
6-16.
6-16.
6-16.
6-16.
C1RSM1
C9RSM1
1
0
1
0
C1RSM0
C9RSM0
0
0
0
0