CMX838 View Datasheet(PDF) - CML Microsystems Plc
Part Name
Description
MFG CO.
'CMX838' PDF : 71 Pages View PDF
FRS/PMR446/GMRS Family Radio Processor
5.1.2.15 16 BIT SUBAUDIO TEST READ DATA Register ($91)
CMX838
Bit(s)
Bit 15-0
Description
This register is reserved for device test modes.
Table 18: 16 BIT SUBAUDIO TEST READ DATA Register ($91)
5.1.2.16 TONE SIGNALING CONTROL Register ($93)
Bit(s)
SUBAUDIO
POWER CONTROL
Bit 7 and Bit 6
Description
These bits are dedicated to power control for the subaudio section.
Bit 7
0
0
Bit 6
0
1
Power level setting
Power down (off)
Enabled
IRQ CONTROL
Bit 5 and Bit 4
Bit 5
0
0
1
1
Bit 4
0
1
0
1
No IRQ
IRQ when detect status change
IRQ when detect status change and Subaudio tone
change detected
IRQ as in “1 0” setting but detect algorithm modified to
detect after a single qualifying measurement instead of
the normal 2 agreeing measurements. This decreased
response time comes at the expense of increased false
response rate.
SUBAUDIO TASK
Bit 3-0
Bit Bit
3
2
Bit
1
Bit
0
Cross
Reference
Section
Description
Normal
Run Mode
0
0
0
0
4.2.4.1 Normal Operation
Reserved
0
0
For
0
0
Test
0
0
0
1
1
1
0
1
4.2.4.2
Reserved for test
(do not use these tasks)
0
1
0
0
4.2.4.3.1 Enable/Disable Tone Detector
RX
0
1
0
1
4.2.4.3.2 Program User Defined Subaudio Tone
Configure
0
1
1
0
4.2.4.3.3 Adjust Detector Band Width
0
1
1
1
4.2.4.3.4 Adjust No Tone Timer Duration
1
0
0
0
4.2.4.4.1
Select Sub-Audio Tone From
Preprogrammed List
TX
1
0
0
1
4.2.4.4.2 Program User Defined Subaudio Tone
Configure
1
0
1
0
4.2.4.4.3
Program Audio Frequency Ringing
Tone
1
0
1
1
4.2.4.4.4 Program TX Timer
1
1
0
0
4.2.4.5.1 Enter Fast Initialization Mode
Initialize
1
1
and
0
1
4.2.4.5.2
Quickly Enable/Disable Multiple
Detectors
Configure
1
1
1
0
4.2.4.5.3 Configure Aux Pin as Output
1
1
1
1
4.2.4.5.4 Soft Reset
Table 19: TONE SIGNALING CONTROL Register ($93)
2003 CML Microsystems Plc
41
D/838/8
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