PEF81902FV1.1 Lantiq, PEF81902FV1.1 Datasheet - Page 130

• Manufacturer Part Number: PEF81902FV1.1
• Manufacturer: Lantiq

Specifications of PEF81902FV1.1

• Lead Free Status / RoHS Status: Supplier Unconfirmed

Table 29
U3
U4H
U4
U5
SP
LOF
Table 30
Upstream
(NT to LT)
U1W
U1A
U1
U3
Data Sheet
Downstream
(LT to NT)
U2W
U2A
U2
U3 indicates that the whole link to the TE is synchronous in both directions.
On detecting U3 the LT requests the NT by U4H to establish a fully
transparent connection.
The M-channel on U may be used to transfer code error indications and
1 kbit/s transparent data.
U4H requires the NT to go to the ’Transparent’ state. On detecting U4H the
NT stops sending signal U3 and informs the S-transceiver or a layer-2
device via the system interface.
The M-channel on U may be used to transfer loop commands and 1 kbit/s
transparent data.
U4 transports operational data on B and D channels. The M-channel on U
may be used to transfer loop commands and 1 kbit/s transparent data.
U5 transports operational data on B and D channels. The M-channel on U
may be used to transfer code error indications and 1 kbit/s transparent
data.
The T-SMINTIX sends periodically single pulses once per millisecond on
the U-interface. The test mode can be used for pulse mask
measurements.
Loss of frame, generated by flywheel
4B3T Signal Elements (cont’d)
Generation of the 4B3T Signal Elements
Resulting in a tone of:
Frequency: 7.5 kHz
Duration: 2.13 ms
when sending the
wakeup tone is finished,
signal AWT is set and
ternary "0" is sent
scrambled binary data
scrambled binary data
scrambled binary data
116
symbols
(ternary)
16 times +
+ + + + +
+ + – – – –
– – – –
Operational Description
sync
word
(tern
ary)
n/a
0
yes
yes
M
sym
bol
(tern
ary)
n/a
0
yes
yes
PEF 81902
2001-11-12
binary
data
before
scram
bling
n/a
0
0
1