DS21Q55 Maxim Integrated Products, DS21Q55 Datasheet - Page 186

• 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): -

25.1.1 Number-of-Errors Left Register
The host can read the NOELx registers at any time to determine how many errors are left to be inserted.
Register Name:
Register Description:
Register Address:
Bit #
Name
Default
Bits 0 to 7/Number-of-Errors Left Counter Bits 0 to 7 (C0 to C7). Bit C0 is the LSB of the 10-bit counter.
Register Name:
Register Description:
Register Address:
Bit #
Name
Default
Bits 0, 1/Number-of-Errors Left Counter Bits 8 to 9 (C8 to C9). Bit C9 is the MSB of the 10-bit counter.
C7
—
7
0
7
0
C6
—
NOEL1
Number-of-Errors Left 1
EEh
NOEL2
Number-of-Errors Left 2
EFh
6
0
6
0
C5
—
5
0
5
0
C4
—
4
0
4
0
186 of 237
C3
—
0
0
3
3
C2
—
2
0
2
0
C1
C9
1
0
1
0
C0
C8
0
0
0
0