DS21455 Maxim Integrated Products, DS21455 Datasheet - Page 194
DS21455
Manufacturer Part Number
DS21455
Description
Network Controller & Processor ICs Quad E1-T1-J1 Single -Chip Transceiver (S
Manufacturer
Maxim Integrated Products
Specifications of DS21455
Product
Framer
Number Of Transceivers
4
Data Rate
64 Kbps
Supply Voltage (max)
3.465 V
Supply Voltage (min)
3.135 V
Supply Current (max)
328 mA
Maximum Operating Temperature
+ 70 C
Minimum Operating Temperature
0 C
Mounting Style
SMD/SMT
Package / Case
BGA
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27.4 BERT Error Counter
Once the BERT has achieved synchronization, this 24-bit counter will increment for each data bit
received in error. Toggling the LC control bit in BC1 can clear this counter. This counter saturates when
full and will set the BECO status bit.
Register Name:
Register Description:
Register Address:
Bit #
Name
Default
Bits 0 to 7/Error Counter Bits 0 to 7 (EC0 to EC7). EC0 is the LSB of the 24-bit counter.
Register Name:
Register Description:
Register Address:
Bit #
Name
Default
Bits 0 to 7/Error Counter Bits 8 to 15 (EC8 to EC15).
Register Name:
Register Description:
Register Address:
Bit #
Name
Default
Bits 0 to 7/Error Counter Bits 16 to 23 (EC16 to EC23). EC23 is the MSB of the 24-bit counter.
EC15
EC23
EC7
7
0
7
0
7
0
EC14
EC22
EC6
BEC1
BERT Error Count Register 1
E7h
BEC2
BERT Error Count Register 2
E8h
BEC3
BERT Error Count Register 3
E9h
6
6
6
0
0
0
EC13
EC21
EC5
5
0
5
0
5
0
EC12
EC20
EC4
4
0
4
0
4
0
194 of 270
EC11
EC19
EC3
3
0
3
0
3
0
EC10
EC18
EC2
2
0
2
0
2
0
EC17
EC1
EC9
1
0
1
0
1
0
EC16
EC0
EC8
0
0
0
0
0
0
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