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參數(shù)資料
| 型號(hào)： | DS3160 |
| 元件分類： | 通信及網(wǎng)絡(luò) |
| 英文描述： | Ultraframer DS3/E3/DS2/E2/DS1/E1/DS0 |
| 中文描述： | Ultraframer DS3/E3/DS2/E2/DS1/E1/DS0 |
| 文件頁(yè)數(shù)： | 59/107頁(yè) |
| 文件大?。?/td> | 592K |
| 代理商： | DS3160 |
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DS3160
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5.4 Performance Error Counters
There are four error counters in the DS3160. All of the error counters are 16 bits in length. The host has
three options as to how these error counters are updated. The device can be configured to automatically
update the counters once per second or manually by either an internal software bit (MECU) or an external
signal (FRMECU). See Section 4.2 for details. All the error counters saturate when full and do not roll
over.
Register Name:
Register Description:
Register Address:
BPVCR
Bipolar Violation Count Register
18h
Bit #
Name
Default
7
6
5
4
3
2
1
0
BPV7
0
BPV6
0
BPV5
0
BPV4
0
BPV3
0
BPV2
0
BPV1
0
BPV0
0
Bit #
Name
Default
15
14
13
12
11
10
9
8
BPV15
0
BPV14
0
BPV13
0
BPV12
0
BPV11
0
BPV10
0
BPV9
0
BPV8
0
Note:
Bits that are underlined are read-only; all other bits are read-write.
Bits 0 to 15/16-Bit Bipolar Violation Counter (BPV0 to BPV15).
These bits report the number of
bipolar violations (BPV). A BPV is defined as consecutive pulses (or marks) of the same polarity that are
not part of a B8ZS code word.
Register Name:
Register Description:
Register Address:
EXZCR
Excessive Zero Count Register
1Ah
Bit #
Name
Default
7
6
5
4
3
2
1
0
EXZ7
0
EXZ6
0
EXZ5
0
EXZ4
0
EXZ3
0
EXZ2
0
EXZ1
0
EXZ0
0
Bit #
Name
Default
15
14
13
12
11
10
9
8
EXZ15
0
EXZ14
0
EXZ13
0
EXZ12
0
EXZ11
0
EXZ10
0
EXZ9
0
EXZ8
0
Note:
Bits that are underlined are read-only; all other bits are read-write.
Bits 0 to 15/16-Bit Excessive Zero Counter (EXZ0 to EXZ15).
These bits report the number of
excessive zero occurrences (EXZ). An EXZ occurrence is defined as eight or more consecutive 0’s. A 0 is
defined as no signal (pulses) on the line for one clock period. As an example, a string of 20 consecutive
0’s would only increment this counter once.
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