CMX138 CML Microcircuits, CMX138 Datasheet - Page 39

• Manufacturer Part Number: CMX138
• Description: Audio Scrambler and Sub-Audio Signalling Processor
• Manufacturer: CML Microcircuits

Audio Scrambler and Sub-Audio Signalling Processor
Notes: 'c' is the power-on checksum or product identification, returned in registers $A9, $AA, $B8, $B9
© 2008 CML Microsystems Plc
ADDR.
$AC
$AD
$BC
$BD
$CA
$CB
$CC
$CD
$CE
$AA
$AB
$AE
$AF
$BB
$BE
$BF
$C0
$C1
$C2
$C3
$C5
$C6
$C7
$C8
$C9
$CF
$A7
$A8
$A9
$B0
$B1
$B2
$B3
$B4
$B5
$B6
$B8
$B9
and $C5. Any registers not mentioned above are undefined.
power-on checksum 2 lo
System Clk 1 Ref
reserved
reserved
reserved
reserved
reserved
reserved
Power Down Control
Mode Control
Audio Control
Tx In-band Tone
Status
Programming
reserved
Tone Status
Audio Tone
Interrupt Mask
reserved
AuxADC / TX MOD Mode 0
AuxDAC control/data
AuxADC data
power-on checksum 2 hi
System Clk 1 PLL Data
reserved
Analogue Input Gain
Analogue Output Gain
reserved
reserved
reserved
Aux ADC Threshold Data
reserved
power-on checksum 1 hi
power-on checksum 1 lo
reserved
product identification
reserved
reserved
Scrambler Frequency
REGISTER
15 14 13 12 11 10 9
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
c
c
c
c
c
0
0
c
c
0
0
0
0
0
0
0
0
0
0
0
0
c
c
0
0
0
0
0
0
0
0
0
c
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Page 39
c
c
c
c
c
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
c
c
c
c
c
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
c
c
c
c
c
0
0
0
0
c
c
0
0
0
0
0
0
0
0
0
0
0
0
c
c
0
0
0
0
0
0
0
0
0
c
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
c
c
c
c
c
8
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
c
c
c
c
c
7
0
0
c
c
0
0
0
0
0
0
0
0
0
0
0
0
c
c
0
0
0
0
0
0
0
0
0
c
0
0
0
0
0
0
0
0
0
0
6
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
c
c
c
c
c
5
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
c
c
c
c
c
4
0
0
c
c
0
0
0
0
0
0
0
0
0
0
0
0
c
c
0
0
0
0
0
0
0
0
0
c
0
0
0
0
0
0
0
0
0
0
3
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
c
c
c
c
c
2
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
c
c
c
c
c
D/138_FI1.0/5
0
0
0
0
0
0
0
0
0
0
1
c
c
0
0
0
0
0
0
0
c
c
0
0
0
0
0
0
0
0
c
0
0
0
0
0
0
0
0
CMX138
0
0
0
c
c
0
0
0
0
0
0
0
0
0
0
0
0
c
c
0
0
0
0
0
0
0
0
0
c
0
0
0
0
0
0
0
0
0
0