BT8222EPFF CONEXANT [Conexant Systems, Inc], BT8222EPFF Datasheet - Page 119

• Manufacturer Part Number: BT8222EPFF
• Description: ATM Transmitter/Receiver with UTOPIA Interface
• Manufacturer: CONEXANT [Conexant Systems, Inc]

CN8223
ATM Transmitter/Receiver with UTOPIA Interface
Table 3-15
Table 3-15. E3 G.751 LINE_STATUS Bit Definitions
100046C
NOTE(S):
Bit
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
One-Second Count
Invalid FEBE
FEBE All-1s
PLCP FEBE Error
PLCP BIP Error
PLCP Frame Error
PLCP Yellow
PLCP LOF 2–3
PLCP LOF
PLCP OOF
E3 A-bit Yellow
E3 AIS
E3 OOF
LOS (Input)
“x” = Bit position is undefined and should be ignored.
lists definitions for E3 G.751 LINE_STATUS bits.
G.751 E3
0
x
Not used
Set if an invalid FEBE = F is detected.
Set if any valid non-0 FEBE value (values 0x1–0x8) is detected in the G1 octet in 57-octet PLCP
formats
Set if there is an error in the BIP-8 code (B1 octet) checking in 57-octet PLCP formats.
Set if there is an error in either the A1 or A2 octets of the PLCP frame pattern for 57-octet PLCP
formats.
active for 10 consecutive PLCP frames.
Set if PLCP LOF is high for three consecutive one-second latching signals (rising edge on
ONESECI).
Not used
Defined in ITU Recommendation G.775.
Set if there is a LOS detected by the internal B3ZS/HDB3 decoder or if the RXLOS~ input pin is
active low. Internal LOS detection is the occurrence of 175
decoding. The RXLOS~ input pin should be tied high unless an external line interface unit
provides an active low LOS indication.
Set if the one-second timer input is detected.
Set if an invalid FEBE is detected (9–F).
PLCP yellow indicates that the yellow alarm bit in the G1 octet (57-octet modes) has been
Set when PLCP OOF is active for eight consecutive PLCP frames.
Set if the PLCP OOF state has been entered for 57-octet PLCP formats.
Set if the internal E3 framer detects the A-bit high in a G.751 E3 frame.
E3 alarm signal. Indicates an unframed all-1s signal present for two consecutive frames.
Out of Frame. Indicates four consecutive incorrect FAS patterns.
Conexant
Description
±
75 zeros prior to B3ZS/HDB3
3.7 Status Register Overview
3.0 Registers
3-33