參數(shù)資料
型號(hào)： MX803A
廠商： Electronic Theatre Controls, Inc.
英文描述： Audio Signaling Processor
中文描述： 音頻信號(hào)處理器
文件頁(yè)數(shù)： 16/26頁(yè)
文件大?。?/td> 225K
代理商： MX803A
Audio Signaling Processor
16
MX803A PRELIMINARY INFORMATION
1996 MX
COM, INC.
Tele: 800 638 5577 910 744 5050 Fax: 910 744 5054
Doc. # 20480122.003
The NOTONE Timer Period Expired bit is cleared:
1. By a read of the Status Register.
2. New NOTONE Timer Information
3. General Reset Command
The timer is set to 00
H
by a General Reset command.
Setting
Function / Period
MSB
7
0
6
0
5
0
4
0
Transmitted Bit 7 first
these 4 bits must be 0
period (ms)
High Band
0
20
3
0
0
2
0
0
1
0
0
0
0
1
%
Mid Band
0
40
%
±
1
±
1
±
1
±
1
±
1
±
1
±
1
±
1
±
1
±
1
±
1
±
1
±
1
±
1
±
1
±
1
±
1
±
1
±
1
±
1
±
1
±
1
±
1
±
1
±
1
±
1
±
1
±
1
±
1
±
1
0
0
1
0
40
80
0
0
1
1
60
120
0
1
0
0
80
160
0
1
0
1
100
200
0
1
1
0
120
240
0
1
1
1
140
280
1
0
0
0
160
320
1
0
0
1
280
360
1
0
1
0
200
400
1
0
1
1
220
440
1
1
0
0
240
480
1
1
0
1
260
520
1
1
1
0
280
560
1
1
1
1
300
600
Table 6: RX Notone Timer Settings
5.2.6.2 NOTONE TIMER CIRCUITRY
The following situations may be encountered by the Notone Timer Circuitry
5.2.6.2.1 No Signal
The Notone timer can only start its run down on completion of a valid frequency measurement.
5.2.6.2.2 No signal after a valid Tone measurement
The timer will start to run down when the last RX Tone Measurement complete bit is set. At the end of the “primed” period
the NOTONE Timer Period Expired bit in the Status Register and the Interrupt will be set.
5.2.6.2.3 Signal fades after a valid Tone measurement
The timer will start to run down when the signal becomes unreadable to the device. At the end of the “primed” period the
NOTONE Timer Period Expired bit in the Status Register and the Interrupt will be set.
5.2.6.2.4 Signal appears after the Timer has started
If the frequency measurement is more than 75% complete when the timer period expires, neither the NOTONE bit nor the
Interrupt will be set unless that frequency measurement is subsequently aborted.
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