MX828 查看數據表（PDF） - MX-COM Inc
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MX828 Datasheet PDF : 34 Pages
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CTCSS/DCS/SelCall Processor
18
MX828 PRELIMINARY INFORMATION
The flow chart shows the following modes of operation for the example below:
1. Decode
)
2. Decode and Fast Detect ) e.g. Address 3 = 100Hz, bandwidth = ±2.7%, interrupt enabled
3. Decode & Fast Predictive )
4. Transmit, e.g. Tx = 100Hz
Note: $8X is the Hex address/command.
Power Up
Clear registers $01
Rx or Tx? Tx
Rx
Program 100Hz
into address 3
$84 (1) = 00110101
$84 (2) = 11001011
Program Tx Tone
Generator to 100Hz
$83 (1) = 00001001
$83 (2) = 11011000
Decoder & Fast Predictive
Program bandwidth
to _+2.7% &
Fast Predictive
$82 = 11111000
Decoder or
Decoder & Fast
Predictive
?
Decoder
Program Fast Rx
Frequency to 100Hz
$83(1) = 00001001
$83(2) = 11011000
Program bandwidth
to +_2.7%
$82 = 11110000
Decoder & Fast Detect
Decoder or
Decoder & Fast
Detector
?
Decoder
Enable IRQ masks
(optional)
$8E = 00001100
Enable IRQ mask
(optional)
$8E = 00001000
Enable Decoder &
Fast Detect/Predictive
$80 = 01100000
Enable Decoder
$80 = 01000000
Enable Tx
$80 = 10000000
© 1997 MX•COM Inc.
www.mxcom.com Tele: 800 638-5577 336 744-5050 Fax: 336 744-5054
Doc. # 20480161.002
4800 Bethania Station Road, Winston-Salem, NC 27105-1201 USA
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