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參數(shù)資料
| 型號(hào)： | NSAM266SA |
| 廠商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分類： | 數(shù)字信號(hào)處理 |
| 英文描述： | 4 Mbit Uniform Sector, Serial Flash Memory |
| 中文描述： | 8-BIT, MIXED DSP |
| 文件頁數(shù)： | 44/52頁 |
| 文件大?。?/td> | 571K |
| 代理商： | NSAM266SA |
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2.0 Software
(Continued)
TABLE 2-2. Tunable Parameters
(Continued)
Index
Parameter Name
Description
Default
16
TONEDGENERATIONDLEVEL
Controls the energy level at which DTMF and other tones are
generated. Each unit represents 3 dB. The default level is the
reference level.
6
For example, if you set this parameter to 4, the energy level is 6 dB
less than the default level. The actual output level is the sum of
TONEDGENERATIONDLEVEL and the VOLDLEVEL variable,
controlled by the VC command. The tones are distorted when the level
is set too high. The valid range is:
0
s
TONEDGENERATIONDLEVEL
a
VOLDLEVEL
s
12.
17
Reserved
18
TONEDTIMEDCOUNT
Controls the duration of a tone before it is reported as a dial tone,
in 10 ms units. The accuracy of the constant is
g
10 ms.
700
Legal values: 0 to 65535.
19
TONEDONDENERGYDTHRESHOLD
Minimum energy level at which busy and dial tones are detected as
ON (after 700 Hz filtering). If you divide (multiply) the value by 2 you
get a 3 dB decrease (increase) in the threshold.
160
Legal values: 0 to 65535.
20
TONEDOFFDENERGYDTHRESHOLD
Maximum energy level at which busy and dial tones are detected as
OFF (after 700 Hz filtering). If you divide (multiply) the value by 2 you
get a 3 dB decrease (increase) in the threshold.
110
Legal values: 0 to 65535.
21
VCDDLEVEL
Controls the energy during playback and external voice synthesis.
Each unit represents 3 dB. The default level is the reference level. For
example, if you set this parameter to 4, the energy level is 6 dB less
than the default level. The actual output level is the sum of VCDD
LEVEL and the VOLDLEVEL variable, controlled by the VC command.
Speech is distorted when the level is set too high. The valid range is:
6
0
s
VCDDLEVEL
a
VOLDLEVEL
s
12.
22
VOXDTOLERANCEDTIME
Controls the maximum energy period, in 10 ms units, that does NOT
reset the vox detector.
3
Legal values: 0 to 255.
23
MINDBUSYDDETECTDTIME
Minimum time period for busy detection, in 10 ms units. The accuracy
of the constant is
g
10 ms.
600
Legal values: 0 to 65535.
24
ECHODDELAY
The near-echo delay in samples. The sampling rate is 8000 Hz (i.e.,
125
m
s per sample).
4
Legal values: 0 to 16.
25
Reserved
26
DTMFDREVDTWIST
Controls the reverse twist level at which CompactSPEECH detects
DTMF tones. While the normal twist is set at 8 dB, the reverse twist
can be either 8 dB (default) or 4 dB (If this parameter is set to 1).
0
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44
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| NSAM266SAA | 4 Mbit Uniform Sector, Serial Flash Memory |
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相關(guān)代理商/技術(shù)參數(shù) |
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| NSAM266SAA | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:NSAM266SA CompactSPEECHTM Digital Speech Processor with Serial Flash Interface |
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| NSAM266SC | 制造商:未知廠家 制造商全稱:未知廠家 功能描述: |
| NSAM266SCA/V | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Solid-State Recorder |
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