DS21Q55 Maxim Integrated Products, DS21Q55 Datasheet - Page 186
DS21Q55
Manufacturer Part Number
DS21Q55
Description
IC TXRX QUAD T1/E1/J1 SCT 256BGA
Manufacturer
Maxim Integrated Products
Datasheet
1.DS21Q55.pdf
(237 pages)
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)
-
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
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Part Number:
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Manufacturer:
DALLAS
Quantity:
319
Company:
Part Number:
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Manufacturer:
Maxim Integrated
Quantity:
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Part Number:
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Manufacturer:
DALLAS
Quantity:
20 000
Part Number:
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Manufacturer:
MAXIM/美信
Quantity:
20 000
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