DS26521LN+ Maxim Integrated Products, DS26521LN+ Datasheet - Page 188

• 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
Bits 3: Transmit RAI Mode (TRAIM). Determines the pattern sent when TRAI (TCR1.0) is activated in ESF frame
mode only.
Bits 2: Transmit AIS Mode (TAISM). Determines the pattern sent when TAIS (TCR1.1) is activated.
Bits 1 and 0: Transmit Code Length Definition Bits (TC[1:0]).
Register Name:
Register Description:
Register Address:
Bit #
Name
Default
Bits 1 and 0: Transmit HDLC FIFO Low Watermark Select (TFLWM[1:2]).
TFLWM1
TC1
0
0
1
1
0
0
1
1
0 = transmit normal RAI upon activation with TCR1.0
1 = transmit RAI-CI (T1.403) upon activation with TCR1.0
0 = transmit normal AIS (unframed all ones) upon activation with TCR1.1
1 = transmit AIS-CI (T1.403) upon activation with TCR1.1
TFLWM2
—
—
7
0
7
0
TC0
0
1
0
1
0
1
0
1
TCR4 (T1 Mode Only)
Transmit Control Register 4
186h
THFC
Transmit HDLC FIFO Control Register
187h
TRANSMIT FIFO WATERMARK
—
—
6
0
6
0
LENGTH SELECTED
16 : 8 : 4 : 2 : 1
(BYTES)
(BITS)
6 : 3
—
—
5
0
5
0
16
32
48
5
7
4
188 of 258
—
—
4
0
4
0
TRAIM
—
3
0
3
0
DS26521 Single T1/E1/J1 Transceiver
TAISM
—
2
0
2
0
TFLWM1
TC1
1
0
1
0
TFLWM2
TC0
0
0
0
0