DS26303LN-75+ Maxim Integrated Products, DS26303LN-75+ Datasheet - Page 32

• Manufacturer Part Number: DS26303LN-75+
• Description: IC LIU E1/T1/J1 3.3V 144-ELQFP
• Manufacturer: Maxim Integrated Products
• Type: Line Interface Units (LIUs)r

Specifications of DS26303LN-75+

• Number Of Drivers/receivers: 8/8
• Protocol: T1/E1/J1
• Voltage - Supply: 3.135 V ~ 3.465 V
• Mounting Type: Surface Mount
• Package / Case: 144-LQFP Exposed Pad, 144-eLQFP, 144-HLQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Register Name:
Register Description:
Register Address:
Bit #
Name
Default
Bit 7: BERT Direction Select (BERTDIR). When set, the internal BERT will output its data on RPOS/RNEG rather
than TTIP/TRING. The BERT will use the recovered clock unless BMCKS or BTCKS is set.
Bit 6: BERT MCLK Select (BMCKS). When set, while BERTDIR is set and BTCKS is not set, the internal BERT
will use MCLK rather than the recovered clock.
Bit 5: BERT Direction Select (BTCKS). When set, while BERTDIR is set, the internal BERT will use TCLK rather
than the recovered clock or MCLK.
Bits 3 to 0: G.772 Monitoring Control (GMC). These bits are used to select a transmit line (TTIPn/TRINGn) or
receive line (RTIPn/RRINGn) for nonintrusive monitoring. Receiver 1 is used to monitor channels 2 to 8. See
5-9.
Table 5-9. G.772 Monitoring Control
GMC3
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
BERTDIR
GMC2
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
7
0
GMC1
BMCKS
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
6
0
GMC
G.772 Monitoring Control Register
0Bh
GMC0
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
BTCKS
5
0
Transmit Line 2
Transmit Line 3
Transmit Line 4
Transmit Line 5
Transmit Line 6
Transmit Line 7
Transmit Line 8
Receive Line 2
Receive Line 3
Receive Line 4
Receive Line 5
Receive Line 6
Receive Line 7
Receive Line 8
No Monitoring
No Monitoring
SELECTION
DS26303: 3.3V, T1/E1/J1, Short-Haul, Octal Line Interface Unit
32 of 101
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4
0
GMC3
3
0
GMC2
2
0
GMC1
1
0
GMC0
0
0
Table