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参数资料
| 型号： | LXT6251A |
| 英文描述： | ATM/SONET MAPPER|CMOS|QFP|208PIN|PLASTIC |
| 中文描述： | 的ATM / SONET的映射器|的CMOS | QFP封装| 208PIN |塑料 |
| 文件页数： | 61/76页 |
| 文件大小： | 995K |
| 代理商： | LXT6251A |
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21 E1 SDH Mapper
—
LXT6251A
Datasheet
61
8.5.3
TRIB_INT
—
Tributary Interrupt (
x
1
–
x
0H)
x
=1
–
15H;
x
1H=Bits<15:8>,
x
0H=Bits<7:0> (Byte access only)
Each tributary has a set of these registers that identify the interrupt source for the tributary. For
those alarms that are persistent (i.e. they can be active longer than a multiframe), there are
associated status registers in
“
TRIB_STA
—
Tributary Status (x3
–
x2H)
”
on page 63
which follow
the same bit pattern.
These registers are normally updated every multiframe. However if the UpDateEn bit is set to
‘
1
’
in
“
INT_CONF
—
Interrupt Configuration Register (00BH)
”
on page 59
they will be frozen until
the associated status register is read.
11
Trib12
1 = Tributary has alarm.
R
10
Trib11
1 = Tributary has alarm.
R
9
Trib10
1 = Tributary has alarm.
R
8
Trib9
1 = Tributary has alarm.
R
7
Trib8
1 = Tributary has alarm.
R
6
Trib7
1 = Tributary has alarm.
R
5
Trib6
1 = Tributary has alarm.
R
4
Trib5
1 = Tributary has alarm.
R
3
Trib4
1 = Tributary has alarm.
R
2
Trib3
1 = Tributary has alarm.
R
1
Trib2
1 = Tributary has alarm.
R
0
Trib1
1 = Tributary has alarm.
R
Bit
Name
Description
Type
Default
Bit
Name
Description
Type
Default
15:13
Reserved
Unused
12
TuNDF
This alarm indicates the HPA section has received an NDF flag in the V1
pointer.
R
X
11
Tim
This alarm indicates a J2 Trace MisMatch alarm. It is asserted IF the received
vs. calculated CRC-7 match (no J2 bit errors), but the received J2 word does
not match that stored in RAM. The CRC-7 byte in RAM is not used in the
comparison.
R
X
10
Crc7Err
This alarm indicates a bit error has been detected in the J2 word. The alarm is
asserted when the received CRC-7 byte does not match the one calculated on
the received data. Detection of this alarm will mask the TIM alarm.
R
X
9
TuLop
This alarm indicates the demapper has detected a Loss of Pointer alarm.
R
X
8
TuAis
This alarm indicates the demapper has detected the pointer value is in an AIS
condition.
R
X
7
Bip2
This alarm indicates that a BIP error has been detected.
R
X
6
Bip2OvrFlw
This alarm indicates the BIP counter has overflowed. The counter will rollover to
0 and continue counting.
R
X
5
Rei
This alarm indicates the V5 REI bit was set to
‘
1
’
.
R
X
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