參數(shù)資料
型號： CN8223EPF
英文描述： ATM/SONET TRANSCEIVER|CMOS|QFP|160PIN|PLASTIC
中文描述： 的ATM / SONET的收發(fā)器|的CMOS | QFP封裝| 160PIN |塑料
文件頁數(shù)： 116/161頁
文件大小： 1865K
代理商： CN8223EPF
3.0 Registers
CN8223
3.7 Status Register Overview
ATM Transmitter/Receiver with UTOPIA Interface
3-30
Conexant
100046D
Set if the three LSBs of the K2 octet are set to
“
111
”
for five consecutive frames.
Table 3-12. STS-1,STS-3c, STM-1 LINE_STATUS Bit Definitions
Bit
Name
Description
15
Line FEBE Error
Set if any valid non-0 FEBE value (values 1
–
24) is detected in the M1 octet of the
STS-1/STS-3c/STM-1 overhead.
14
One-Second Count
Set if the one-second timer input is detected.
13
Signal Label Mismatch
Set if the received value in the C2 octet does not equal 0x13 for seven consecutive frames.
12
Path FERF Error
Set if a value of 9 is detected in the most significant nibble of the G1 octet of the
STS-1/STS-3c/STM-1 overhead.
11
Path FEBE Error
Set if any valid non-0 FEBE value (values 1
–
8) is detected in the most significant nibble of
the G1 octet of the STS-1/STS-3c/STM-1 overhead.
10
Summary BIP Error
Set if there is an error in any of the B1, B2, B3 BIP-8, or BIP-24 codes at the receiver.
9
Line FERF
Set if the three LSBs of the K2 octet are set to
“
110
”
for five consecutive frames.
8
LOC
Indicates that HEC cell delineation has been lost. Cell delineation is lost if seven consecutive
HEC errors occur at the current cell delineation position.
7
STS LOF 2
–
3
Set if STS LOF is high for three consecutive one-second latching signals (rising edge on
ONESECI).
6
STS LOF
Set when STS OOF is active for 24 consecutive SONET frames.
5
STS OOF
Set if four consecutive errored A1/A2 framing patterns are observed. For STS-3c/STM-1, the
pattern observed consists of the third A1 octet and the first A2 octet.
4
Path Yellow
Set if the path yellow bit in the G1 octet is set for 10 consecutive frames. The RDI qualifier
for this alarm can be observed in bits 8 and 9 of the CONFIG_5 register.
3
Path AIS
Set if H1 and H2 octets are all 1s for three consecutive frames.
2
Line AIS
1
STS LOP
Set if a valid pointer as defined in TR-NWT-000253 cannot be found in the H1/H2 pointer of
the STS-1/STS-3c/STM-1 frame.
0
LOS (Input)
Set if there is a LOS detected by the RXLOS~ input pin. For STS-3c/STM-1, the only source
of LOS is RXLOS~. Cells will continue to be output on the receive side until LOCD is
detected, which is about 6 or 7 cells. To stop output of cells immediately, connect RXLOS~
to RCV_HLD after inverting.
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