參數(shù)資料
型號： TECO3264
廠商： Lineage Power
英文描述： 32-Channel Echo Canceller(32通道回波清除器)
中文描述： 32通道回聲消除器（32通道回波清除器）
文件頁數(shù)： 40/128頁
文件大?。?/td> 2328K
代理商： TECO3264
Data Sheet
August 1999
TECO3264 32-Channel Echo Canceller
40
Lucent Technologies Inc.
Parameters
(continued)
Tone Disabler Parameters
The parameters in Table 15 are used to determine the characteristics of the straight tone detector (TD), the tone
detector with periodic phase reversals (TDPR), and voice path assurance tone detection (VPA).
* See Table 128, Tone Detector Indicator Registers (107—10E), on page 118 for more details.
Table 15. Tone Disabler Parameters
Symbol
Description
Memory Map
Starting Address (Hex)
0x3D
0x3E
0x3E
0x3F
0x3F
0x40
0x41
0x42
0x42
0x43
0x43
0x44
0x44
0x44
0x45
0x45
0x46
0x46
0x46
0x47
0x48
0x49
0x49
0x4A
0x4A
0x4A
0x4A
0x3C
0x3D
0x3D
0x107
LOWCT[5:0]
HICT[5:0]
BADCT[1:0]
GOODCT[5:0]
BADVPACT[1:0]
MINXFRM[10:0]
MAXHOLDTD[3:0]
MINPRBADCT[1:0]
MINPRBLOCK[5:0]
MAXTDPR[8:0]
PRBADCONSEC
MINPRGOODCT[2:0] Number of primitive PRs to indicate a PR.
GOODVPACT[2:0]
Number of good VPA counts to detect VPA.
PRNUM[1:0]
Number of PRs to declare TDPR (1000R is set to 2).
LOWVPACT[5:0]
Number of peaks in interval for high side of VPA.
CLRNTD
Clear TD SV storage.
HIVPACT[5:0]
Number of peaks in interval for high side of VPA.
TDTESTX
TD test input for X direction.
TDTESTY
TD test input for Y direction.
MINVPAPWR[7:0]
Minimum power to detect VPA.
MINPWRDET[7:0]
Minimum power to detect 2100 Hz.
TDCLRN2
Clear TD SV outputs.
VARP[4:0]
Sets channel alignment for TD, TDPR, and VPA outputs.
ENTDPRNF
Enable new TDPR feature.
ENTDNF
Enable new TD feature.
TDPRTHR[2:0]
Number of PRs allowed between valid PRs.
TDTHR[2:0]
Number of PRs allowed during TD detection.
SVTD[7:0]
Tone disabler state variable storage test.
TIN
TD test input to speed up 8 ms window.
TMODE
TD test input.
TD
Per-channel TD indication*.
TD = 1
→
TD detected.
TD = 0
→
TD not detected.
TDPR
Per-channel TDPR indication*.
TDPR = 1
→
TDPR detected.
TDPR = 0
→
TDPR not detected.
EYTDSEL
Selects Y or ê input to TD.
Number of peaks in interval for low side of 2100 Hz.
Number of peaks in interval for high side of 2100 Hz.
Number of bad intervals to reject 2100 Hz.
Number of good intervals to declare 2100 Hz.
Number of bad intervals to reject VPA detection.
Number of good intervals to declare VPA detection.
Maximum silent interval before dropping tone detection.
Maximum number of bad primitive PR counts.
Minimum number of 8 ms intervals between PRs.
Maximum interval between PRs.
Controls whether bad PR counts can be consecutive.
0x107
0x107
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