PEB2465 SIEMENS [Siemens Semiconductor Group], PEB2465 Datasheet - Page 36

• Manufacturer Part Number: PEB2465
• Description: Four Channel Codec Filter
• Manufacturer: SIEMENS [Siemens Semiconductor Group]

Semiconductor Group
3.6
TH-Filter:
AX, AR, IM,
FRX, FRR-Filter: An individual coefficient set is available for each of the four channels
Tone-generators: An individual coefficient set is available for each of the four channels
An independent set of coefficients is available for all the four channels, for all the filters
and Tone-Generators. So AX, AR, FRR, FRX, IM and TG1 and TG2 behave like AX and
AR-filters in Version V1.*.
The programming flexibility for the TH-filter was not changed from Version V1.* to
Version V2.*. Four sets of TH-filter coefficients can be loaded to the SICOFI-4. Each of
the four sets can be selected for any of the four SICOFI-4 channels, by setting the value
of TH-SEL in configuration register CR2. Coefficients set #1 is loaded to the SICOFI-4
via channel 1, set #2 is loaded via channel 2 and so on.
Note: After RESET coefficient set #1 is used for all of the four channels, as all bits in
Figure 9
Channel Registers
configuration register CR2 are set to ‘ 0’.
How to Program the Filter Coefficients
Four sets of TH-filter coefficients can be loaded to the SICOFI-4.
Each of the four sets can be selected for any of the four SICOFI-4
channels, by setting the value of TH-Sel in configuration register
CR2. Coefficient set 1 is loaded to the SICOFI-4 via channel 1, set 2
is loaded via channel 2 and so on.
36
Programming the SICOFI
PEB 2465
02.97
®
-4