PSB4860HV4.1 Lantiq, PSB4860HV4.1 Datasheet - Page 47

• Manufacturer Part Number: PSB4860HV4.1
• Manufacturer: Lantiq

Specifications of PSB4860HV4.1

• Lead Free Status / Rohs Status: Supplier Unconfirmed

Table 11 shows the registers associated with the line echo canceller.
Table 11
Register
LECCTL
LECCTL
LECCTL
LECCTL
LECCTL
LECCTL
LECLEV
LECATT
LECMGN 15
The adaptation of the coefficients can be stopped by setting bit AS in register LECCTL.
This holds for all three modes of the Line Echo Canceller. Furthermore for superior
mode, also the copying of the coefficients from the shadow FIR is disabled.
The different modes can be selected by setting the bits MD and CM as indicated by
table 12.
Table 12
Data Sheet
MD
0
0
1
Line Echo Cancellation Unit Registers
Selection of the Mode of the Line Echo Canceller
# of Bits Name Comment
1
1
5
5
15
15
1
1
CM
0
1
-
EN
MD
CM
AS
I2
I1
MIN
ATT
MGN
Mode
Normal mode
Superior mode
Extended mode
Line echo canceller enable
Line echo canceller mode
Compatibility mode
Adaptation stop
Input signal selection for I
Input signal selection for I
Minimal power for signal I
Externally provided attenuation (I
Margin
47
2
1
1
1
to I
2
) normal and sup.
normal and sup.
Relevant Mode
all
all
all
all
normal and sup.
PSB 4860
2000-01-14