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| 型號(hào)： | 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(yè)數(shù)： | 67/128頁(yè) |
| 文件大?。?/td> | 2328K |
| 代理商： | TECO3264 |
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Data Sheet
August 1999
TECO3264 32-Channel Echo Canceller
67
Lucent Technologies Inc.
Register Architecture
(continued)
Page 0 Read/Write Registers 000
—
07FE
(continued)
All-Channel Control Parameters
Table 25—Table 120 list the parameters in registers 020—07F. The value for each register applies to all 32 chan-
nels. The register address (xyz) (hexadecimal) and recommended value [ab] (hexadecimal) are shown in the table
titles, respectively.
Tone Disabler Masks 1 Register
The bits in this register are used to mask conditions from automatically disabling the echo canceller when the con-
dition is detected. The provisioning of the mask is for all channels, but the action is per-channel.
Table 25. Tone Disabler Masks 1 Register (020) [00]
Bit
0
Symbol
MECTD
Parameter Name and Description
Mask Tone Detect 1.
Mask for 2100 Hz straight tone control of echo canceller (EC) func-
tion.
0 = Mask, do not allow tone detect control of EC [recommended value].
1 = Allow control, i.e., if tone is present, EC will be disabled.
Mask Phase Reversed Tone Detect 1.
Mask for 2100 Hz phase reversed control of the EC
function.
1
MECTDPR
0 = Mask, do not allow PR tone detect control of EC [recommended value].
1 = Allow control.
Mask Voice Path Assurance (VPA).
Mask for 2010 Hz VPA tone control of the EC func-
tion. Voice path assurance (VPA) is a network continuity test of the voice path that can be
performed prior to the circuit being released for customer communication.
2
MECVPA
0 = Mask, do not allow VPA control of EC [recommended value].
1 = Allow control.
Mask External EC Control.
Mask for ECDIS external pin control of the EC function.
3
MECEXT
0 = Mask, do not allow external control of EC [recommended value].
1 = Allow control.
Mask Bit 15 X.
Mask for bit 15 of XPCM input control of EC function.
4
MBlT15X
0 = Mask, do not allow XPCM control of EC [recommended value].
1 = Allow control. XPCM bit 15 of EC function.
Mask Bit 15 Y.
Mask for bit 15 of YPCM input control of EC function.
5
MBIT15Y
0 = Mask, do not allow YPCM control of EC [recommended value].
1 = Allow control. YPCM bit 15 of EC function.
Reserved.
Set to 0.
7—6
—
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