DS26521L+ Maxim Integrated Products, DS26521L+ Datasheet - Page 129

• Manufacturer Part Number: DS26521L+
• Description: IC TXRX T1/E1/J1 64-LQFP
• Manufacturer: Maxim Integrated Products
• Type: Line Interface Units (LIUs)r

Specifications of DS26521L+

• 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
• Product: Framer
• Number Of Transceivers: 1
• Data Rate: 44.736 Mbps
• Supply Voltage (max): 3.465 V
• Supply Voltage (min): 3.135 V
• Supply Current (max): 220 mA
• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 40 C
• Mounting Style: SMD/SMT
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Register Name:
Register Description:
Register Address:
Bit #
Name
Default
Note: This register has an alternate definition for E1 mode. See RCR1.
Bit 7: Sync Time (SYNCT).
Bit 6: Receive B8ZS Enable (RB8ZS).
Bit 5: Receive Frame Mode Select (RFM).
Bit 4: Auto Resync Criteria (ARC).
Bit 3: Sync Criteria (SYNCC).
Bit 2: Receive Japanese CRC-6 Enable (RJC).
Bit 1: Sync Enable (SYNCE).
Bit 0: Resynchronize (RESYNC). When toggled from low to high, a resynchronization of the receive-side framer is
initiated. Must be cleared and set again for a subsequent resync.
0 = qualify 10 bits
1 = qualify 24 bits
0 = B8ZS disabled
1 = B8ZS enabled
0 = ESF framing mode
1 = D4 framing mode
0 = resync on OOF or LOS event
1 = resync on OOF only
In D4 Framing Mode:
0 = search for Ft pattern, then search for Fs pattern
1 = cross couple Ft and Fs pattern
In ESF Framing Mode:
0 = search for FPS pattern only
1 = search for FPS and verify with CRC6
0 = use ANSI:AT&T:ITU-T CRC-6 calculation (normal operation)
1 = use Japanese standard JT-G704 CRC-6 calculation
0 = auto resync enabled
1 = auto resync disabled
SYNCT
7
0
RCR1 (T1 Mode)
Receive Control Register 1
081h
RB8ZS
6
0
RFM
5
0
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ARC
4
0
SYNCC
3
0
DS26521 Single T1/E1/J1 Transceiver
RJC
2
0
SYNCE
1
0
RESYNC
0
0