DS21Q55 Maxim Integrated Products, DS21Q55 Datasheet - Page 170

• Manufacturer Part Number: DS21Q55
• Description: IC TXRX QUAD T1/E1/J1 SCT 256BGA
• Manufacturer: Maxim Integrated Products

Specifications of DS21Q55

• Function: Transceiver
• Interface: E1, J1, T1
• Number Of Circuits: 4
• Voltage - Supply: 3.14 V ~ 3.47 V
• Current - Supply: 75mA
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: Surface Mount
• Package / Case: 256-BGA
• Includes: BERT Generator and Detector, Dual HDLC Controllers
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Power (watts): -

Register Name:
Register Description:
Register Address:
Bit #
Name
Default
Note: Writing this register resets the detector’s integration period.
Bit 0/Receive Down-Code Definition Bit 0 (C0). A don’t care if a 1-bit to 7-bit length is selected.
Bit 1/Receive Down-Code Definition Bit 1 (C1). A don’t care if a 1-bit to 6-bit length is selected.
Bit 2/Receive Down-Code Definition Bit 2 (C2). A don’t care if a 1-bit to 5-bit length is selected.
Bit 3/Receive Down-Code Definition Bit 3 (C3). A don’t care if a 1-bit to 4-bit length is selected.
Bit 4/Receive Down-Code Definition Bit 4 (C4). A don’t care if a 1-bit to 3-bit length is selected.
Bit 5/Receive Down-Code Definition Bit 5 (C5). A don’t care if a 1-bit or 2-bit length is selected.
Bit 6/Receive Down-Code Definition Bit 6 (C6). A don’t care if a 1-bit length is selected.
Bit 7/Receive Down-Code Definition Bit 7 (C7). First bit of the repeating pattern.
Register Name:
Register Description:
Register Address:
Bit #
Name
Default
Bits 0–7/Receive Down-Code Definition Bits 0–7 (C0–C7). A don’t care if a 1-bit to 7-bit length is selected.
C7
C7
7
0
7
0
C6
C6
RDNCD1
Receive Down-Code Definition Register 1
BBh
RDNCD2
Receive Down-Code Definition Register 2
BCh
6
0
6
0
C5
C5
5
0
5
0
C4
C4
4
0
4
0
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C3
C3
0
0
3
3
C2
C2
2
0
2
0
C1
C1
1
0
1
0
C0
C0
0
0
0
0