CMX808AP4 View Datasheet(PDF) - MX-COM Inc
Part Name
Description
MFG CO.
'CMX808AP4' PDF : 22 Pages View PDF
Family Radio Service CTCSS Processor
14
CMX808A Preliminary Information
4.1.3.3 Tone Cloning Routine
The flow chart shows the tone cloning routine. The first programmed tone set ($0-$6) will decode after
typically 140ms, subsequent tone sets will decode almost instantly (i.e. the information is available at the
Reply Data Output in less than 100µs).
Note: $8X and $9C is the Hex address/command
Program Bandwidth
Enable IRQ Mask
Enable Decoder
$80=$7D
Enable Tone
Cloning $9C=$01
Program Tones
($84) into
Addresses $0-$6
Wait for Interrupt
Read Status
Register ($81)
Is it a
Yes
Programmed
Tone?
No
Mask Interrupt
$80=$7C
Tone Decoded
Program Tones
($84) into
Addresses $0-$6
Wait 100µs
Read Status
Register ($81)
No
Is it a
Programmed
Tone?
Yes
Tone Decoded
Figure 4: Tone Cloning Routine
©1999 MX-COM, Inc.
www.mxcom.com tel: 800 638 5577 336 744 5050 fax: 336 744 5054
Doc. # 20480199.002
4800 Bethania Station Road, Winston-Salem, NC 27105-1201 USA
All trademarks and service marks are held by their respective companies.
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