PEF22827EL-V11 Lantiq, PEF22827EL-V11 Datasheet - Page 251

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

Specifications of PEF22827EL-V11

• Lead Free Status / RoHS Status: Supplier Unconfirmed

Table 77
Short Name
NTCHA2_L
NTCHA2_L
NTCHA2_L
10.17.3
The notch filter for each band is defined by three, 12-bit coefficients: NTCHA1, NTCHA2
and NTCHB. The
and NTCHA2 coefficients for DS1.
contain the eight least significant bits 7:0 of these coefficients, respectively.
The corresponding registers for the second downstream channel (DS2), the first
upstream channel (US1) and the second upstream channel (US2) have the same names
and layout, but unique addresses. See
these registers.
For details on notch filters, refer to standards documents (see
Page
•
•
NTCHA_H
Notch Filter Coefficients NTCHA2 and NTCHA1 (DS1), High Bits
Field
A2_H11:A2_L
8
A1_H11:A1_L
8
Preliminary Data Sheet
“ETSI Standard Values for Notch Registers, 38.88 MHz Clock” on Page 61
“ANSI Standard Values for Notch Registers, 38.88 MHz Clock” on Page 61
7
291). For possible values for this register, see also:
Notch Filter Coefficients NTCHA2 and NTCHA1 (DS1), High Bits
(NTCHA_H)
Second Notch Filter Coefficient Registers, Low Byte
A2_H11:A2_L8
6
Long Name
Second US1 Notch Filter Coefficient, Low Byte 5DC3
Second DS2 Notch Filter Coefficient, Low Byte 5DC8
Second US2 Notch Filter Coefficient, Low Byte 5DCD
Bits Typ
7:4
3:0
NTCHA_H
rw
e
rw
rw
5
Description
Most Significant Bits of Second Notch Filter
Coefficient (A2)
Most Significant Bits of First Notch Filter Coefficient
(A1)
register holds the four most significant bits of the NTCHA1
NTCHA1_L
4
(5DBF
Table 78
251
H
)
3
for the addresses and reset values of
(5DBD
H
A1_H11:A1_L8
) and
2
rw
NTCHA2_L
Offset
Address
Rev. 1.1, 2005-01-30
“References” on
Reset Value: 00
1
H
H
H
VDSL6100i
PEF 22827
(5DBE
Reset
Value
00
00
00
H
H
H
0
H
H
)