PEF22827EL-V11 Lantiq, PEF22827EL-V11 Datasheet - Page 68

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

Specifications of PEF22827EL-V11

• Lead Free Status / RoHS Status: Supplier Unconfirmed

2. PRESYNC - In this state, the receiver verifies the match of bits in the SYNC word
3. SYNC - After achieving synchronization, the receiver tracks the SYNC word, frame
Figure 8
In the reception path, the PMS-TC layer also does the following:
•
•
•
•
•
4.4.2.1
A single transmission frame is constructed from two PMD frames using a reverse of the
process described in
Page
4.4.2.2
The interleaving process described in
slow stream.
Preliminary Data Sheet
found during the HUNT and searches for a second consecutive match. If two
consecutive matches are found, the state switches from PRESYNC to SYNC. If a
second consecutive match is not found, the state returns to HUNT.
by frame, until six consecutive frames do not match. This causes the state machine
to switch back from the SYNC state to the HUNT state.
Transmission Frame Construction from PMD Frames
De-interleaving
Reed Solomon Decoding
Unscrambling
Distribution of Data
At least six (eight for data rates higher
than 26 Mbit/s) consecutive events
66.
occurred at expected positions.
Transmission Frame Construction from PMD Frames
De-interleaving
Transmission Frame Delineation State Machine
HUNT
“Splitting the Transmission Frame into PMD Frames” on
One event detected.
No event occurred at
expected position.
“Interleaving” on Page 63
68
SYNC
Functional Description – Digital Block
At least two consecutive
expected positions.
events ocurred at
PRESYNC
is reversed for the
Rev. 1.1, 2005-01-30
frame_deliniation
VDSL6100i
PEF 22827