PEF22827EL-V11 Lantiq, PEF22827EL-V11 Datasheet - Page 69

• Manufacturer Part Number: PEF22827EL-V11
• Manufacturer: Lantiq

Specifications of PEF22827EL-V11

• Lead Free Status / RoHS Status: Supplier Unconfirmed

4.4.2.3
Reed Solomon code words are decoded for both fast and slow streams. For more
information on Reed Solomon code words, see
Page
4.4.2.4
After Reed Solomon (RS) decoding, a self-synchronizing algorithm unscrambles the
header, the payload on the fast channel and the payload on the slow channel. It
unscrambles each stream separately, using following algorithm (the same algorithm that
was
4.4.2.5
Information channels (fast, slow, OC and control) are distributed to the relevant modules.
4.5
Packet and data transfer supports Ethernet packets over the slow channel.
The digital transceiver can be configured as a 10 or 100 Mbit/s Ethernet PHY, so that it
can interface to a standard 10 or 100 Mbit/s Ethernet MAC, or as a 10 or 100 Mbit/s
Ethernet MAC, so that it can interface to a 10 or 100 Mbit/s Ethernet PHY.
The digital transceiver provides the following to support delivery of Ethernet packets:
•
•
•
•
•
•
4.5.1
With Standard 4-band firmware, HDLC framing is used for encapsulation of Ethernet
packets as required by the ITU-T standard G.993.1.
The HDLC block is connected to the slow channel.
HDLC frame.
Preliminary Data Sheet
D
out
Ethernet encapsulation
Bridging
802.3 MAC functionality
x
Ethernet MIB support
Speed and duplex adaptation
n
MII Interfaces (MII, RMII, SMII)
= D
63.
used
in
n
Reed Solomon Decoding
Unscrambling
Distribution of Data
Ethernet Network Interfaces and the TPS-TC Layer
Ethernet Encapsulation
for
D
out
n - 18
scrambling),
D
out
n - 23
regardless
69
Functional Description – Digital Block
of
the
Table 25
“Reed Solomon Encoding” on
configuration
shows the contents of an
Rev. 1.1, 2005-01-30
(LT
VDSL6100i
PEF 22827
or
NT):