DS26521LN+ Maxim Integrated Products, DS26521LN+ Datasheet - Page 181

• Manufacturer Part Number: DS26521LN+
• Description: IC TXRX T1/E1/J1 64-LQFP
• Manufacturer: Maxim Integrated Products
• Type: Line Interface Units (LIUs)r

Specifications of DS26521LN+

• Number Of Drivers/receivers: 1/1
• Protocol: T1/E1/J1
• Voltage - Supply: 3.135 V ~ 3.465 V
• Mounting Type: Surface Mount
• Package / Case: 64-LQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Register Name:
Register Description:
Register Address:
Bit #
Name
Default
Note: See
Bit 7: Transmit Japanese CRC-6 Enable (TJC).
Bit 6: Transmit F-Bit Pass Through (TFPT).
Bit 5: Transmit CRC Pass Through (TCPT).
Bit 4: Transmit Software-Signaling Enable (TSSE). This function is enabled by TB7ZS (TCR2.0).
Bit 3: Global Bit 7 Stuffing (GB7S). This function is enabled by TB7ZS (TCR2.0).
Bit 2: Transmit B8ZS Enable (TB8ZS).
Bit 1: Transmit Alarm Indication Signal (TAIS).
Bit 0: Transmit Remote Alarm Indication (TRAI).
0 = use ANSI/AT&T:ITU-T CRC-6 calculation (normal operation)
1 = use Japanese standard JT-G704 CRC-6 calculation
0 = F-bits sourced internally
1 = F-bits sampled at TSER
0 = source CRC-6 bits internally
1 = CRC-6 bits sampled at TSER during F-bit time
0 = do not source signaling data from the TSx registers regardless of the SSIEx registers. The SSIEx
registers still define which channels are to have B7 stuffing performed.
1 = source signaling data as enabled by the SSIEx registers.
0 = allow the SSIEx registers to determine which channels containing all zeros are to be bit 7 stuffed
1 = force bit 7 stuffing in all zero-byte channels of that port, regardless of how the SSIEx registers are
programmed
0 = B8ZS disabled
1 = B8ZS enabled
0 = transmit data normally
1 = transmit an unframed all-ones code at TTIP and TRING
0 = do not transmit remote alarm
1 = transmit remote alarm
TCR1
for E1 mode.
TJC
7
0
TCR1 (T1 Mode)
Transmit Control Register 1
181h
TFPT
6
0
TCPT
5
0
181 of 258
TSSE
4
0
GB7S
3
0
DS26521 Single T1/E1/J1 Transceiver
TB8ZS
2
0
TAIS
1
0
TRAI
0
0