參數(shù)資料
型號(hào)： T8531A
廠商： Lineage Power
英文描述： Tone Processing(音調(diào)處理器件)
中文描述： 音處理（音調(diào)處理器件）
文件頁(yè)數(shù)： 2/20頁(yè)
文件大?。?/td> 338K
代理商： T8531A
2
Lucent Technologies Inc.
User Manual
September 2000
T8531 and T8531A Tone Processing
Table of Contents
Contents
Page
Introduction................................................................................................................................................................1
Features ....................................................................................................................................................................1
DTMF Detection......................................................................................................................................................1
Caller ID Generation ...............................................................................................................................................1
Call Progress Tone Generation ..............................................................................................................................1
Description.................................................................................................................................................................3
Host Interface..........................................................................................................................................................3
DSP Core Memory Map..........................................................................................................................................4
Introduction to Tone-Processing Algorithms...........................................................................................................4
DTMF Detection ........................................................................................................................................................5
Overview.................................................................................................................................................................5
DTMF Detection Operation.....................................................................................................................................5
DTMF Detection Programming Summary...............................................................................................................7
Caller ID Generation..................................................................................................................................................8
Overview.................................................................................................................................................................8
Caller ID Generation Operation ..............................................................................................................................9
Caller ID Generation Programming Summary ......................................................................................................10
Extended Caller ID Generation.............................................................................................................................11
Call Progress Tone Generation...............................................................................................................................12
Call Progress Tone Generation Programming Summary .....................................................................................13
Appendix A: ROM Tone-Processing Algorithms......................................................................................................14
Subroutine: CPT Generation Start........................................................................................................................15
Subroutine: CID Generation Start.........................................................................................................................16
Subroutine: DTMF Detection Start........................................................................................................................18
Subroutine: Initialization Routines.........................................................................................................................20
Figures
Page
Figure 1. Hardware Interface Between Host and T8531 ..........................................................................................3
Figure 2. T8531 Digital ac Path with Tone Processing..............................................................................................3
Figure 3. DTMF Signaling .........................................................................................................................................5
Figure 4. Caller ID Frame Format..............................................................................................................................8
Tables
Page
Table 1. DSP1627 Core Memory Map .....................................................................................................................4
Table 2. Possible Combination of Receive and Transmit Path Routines .................................................................4
Table 3. DTMF Detector Control Words ...................................................................................................................5
Table 4. DTMF Detection Result Word .....................................................................................................................6
Table 5. D4
—D0 for DTMF Detection ......................................................................................................................6
Table 6. Caller ID Control Words ..............................................................................................................................9
Table 7. Additional Caller ID Control Words ...........................................................................................................11
Table 8. Call Progress Tone Generation Control Words ........................................................................................12
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