PEF22827EL-V11 Lantiq, PEF22827EL-V11 Datasheet - Page 196

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

Specifications of PEF22827EL-V11

• Lead Free Status / RoHS Status: Supplier Unconfirmed

Field
PSDADJ
10.4.8
The
value is added to the result of attenuation measurement for each board when the ATT
VOC parameter is issued or during the PBO process. See
Page
To determine the adjustment required (the value of this register) at the LT, do the
following:
1. Connect modems directly (0m distance).
2. Set the modem to default link (make sure that the default is not long reach default).
3. Set register ATTADJ (0x8F0D) to 0 on both sides (LT and NT).
4. Trigger the attenuation measurement by issuing the ATT link performance VOC
5. Record US1 PSD at 0x5E23 on NT side (USPSD).
6. Set ATTADJ register on NT side with the value 256-ATT(DS1) and on LT side with
7. Repeat Step 4 until the attenuation measurement on the NT side is 0. For the LT side,
8. Apply the changes by saving this register to EEPROM at location 0x7813.
ATTADJ
Input Attenuation Adjustment Register (8F0D
Field
ATTADJ
10.5
This section describes the following status registers for standard firmware:
•
•
•
Preliminary Data Sheet
command (opcode 03
the value 256-(ATT(US1)-(0xA0-USPSD)).
the attenuation should be 0xA0-USPSD.
General Status Register 1 (GEN_STATUS1)
General Status Register 2 (GEN_STATUS2)
General Status Register 3 (GEN_STATUS3)
ATTADJ
7
115.
Attenuation Input Adjustment Register (ATTADJ)
Main Status Registers
register specifies a value in units of 0.25 dBm to adjust attenuation. This
Bits Type Description
7:0
6
Bits Typ
7:0
rw
e
rw
H
).
5
Description
Adjustment of PSD Input to the Board
Adjustment of PSD Output from the Board
4
ATTADJ
196
rw
H
3
)
“Power Back Off (PBO)” on
2
Rev. 1.1, 2005-01-30
Reset Value: 00
1
VDSL6100i
PEF 22827
0
H