DS26334GNA3+ Maxim Integrated Products, DS26334GNA3+ Datasheet - Page 79

• Manufacturer Part Number: DS26334GNA3+
• Description: IC LIU E1/T1/J1 3.3V 256-CSBGA
• Manufacturer: Maxim Integrated Products
• Type: Line Interface Units (LIUs)r

Specifications of DS26334GNA3+

• Number Of Drivers/receivers: 16/16
• Protocol: IEEE 1149.1
• Voltage - Supply: 3.135 V ~ 3.465 V
• Mounting Type: Surface Mount
• Package / Case: 256-CSBGA
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Register Name:
Register Description:
Register Address (LIUs 1–8):
Bit #
Name
Default
Note: This register enables the LIU1-LIU8 BERT. The BERT can only connect to one LIU at a time. The LIU1-LIU8 BERT operates
independently of the LIU9-LIU16 BERT.
Bits 7 to 5: Bit Error Rate Transceiver Select [2:0] (BTS[2:0]). These bits BTS[2:0] select the LIU that the BERT
applies to (see
Bit 0: Bit Error Rate Tester Enable (BERTE). When this bit is set and 2µs have past, the BERT will be enabled.
The BERT register set should be written and read to only after being enabled. The BERT is only active for one LIU
at a time selected by BTS[2:0]. If the BERT is enabled on the transmit (line) side, the BERT data will be
automatically B8ZS/HDB3 encoded before it is transmitted.
Register Address (LIUs 9–16):
Bit #
Name
Default
Note: This register enables the LIU9-LIU16 BERT. The BERT can only connect to one LIU at a time. The LIU9-LIU16 BERT operates
independently of the LIU1–LIU8 BERT.
Bits 7 to 5: Bit Error Rate Transceiver Select [2:0] (BTS[2:0]) These bits BTS[2:0] select the LIU that the BERT
applies too (see
Bit 0: Bit Error Rate Tester Enable (BERTE). When this bit is set and 2µs have past, the BERT will be enabled.
The BERT register set should be written and read to only after being enabled. The BERT is only active for one LIU
at a time selected by BTS[2:0]. If the BERT is enabled on the transmit (line) side, the BERT data will be
automatically B8ZS/HDB3 encoded before it is transmitted.
BTS2
BTS2
Table
7
0
7
0
Table
6-18). This is only applicable if the BERTE bit is set.
6-19). This is only applicable if the BERTE bit is set.
BTS1
BTS1
6
0
6
0
BTCR
Bit Error Rate Tester Control Register
10h
30h
BTS0
BTS0
DS26334 3.3V, 16-Channel, E1/T1/J1 Short/Long-Haul Line Interface Unit
5
0
5
0
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—
—
4
0
4
0
—
—
3
0
3
0
—
—
2
0
2
0
—
—
1
0
1
0
BERTE
BERTE
0
0
0
0