參數(shù)資料
型號(hào): T8531
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): 6/20頁(yè)
文件大?。?/td> 338K
代理商: T8531
6
Lucent Technologies Inc.
User Manual
September 2000
T8531 and T8531A Tone Processing
DTMF Detection
(continued)
DTMF Detection Operation
(continued)
The definition of the value returned by the DTMF receiver is shown in Table 4 and Table 5 below. The V bit is set to
a 1 whenever a valid DTMF digit is being received. This information is then passed on to the DTMF detection result
register, where it waits for the host to poll it.
Table 4. DTMF Detection Result Word
Table 5. D4—D0 for DTMF Detection
D[15:8]
0
D[7:5]
0
D[4]
V
D[3]
D3
D[2]
D2
D[1]
D1
D[0]
D0
DTMF
0
1
2
3
4
5
6
7
8
9
A
B
C
D
*
#
D3
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
D2
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
D1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
D0
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
相關(guān)PDF資料
PDF描述
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