CMX838 View Datasheet(PDF) - CML Microsystems Plc
Part Name
Description
MFG CO.
'CMX838' PDF : 71 Pages View PDF
FRS/PMR446/GMRS Family Radio Processor
CMX838
5.1.2 16-Bit C-BUS Register Map
16 BIT REGISTER
NAME
TX MOD 1&2
CONTROL
[Write $88]
SYNTHESIZER 1ST
IF OFFSET
[Write $8D]
[SIFOS]
16 BIT SUBAUDIO
TASK DATA
[Write $8E]
16 BIT SUBAUDIO
TEST DATA
[Write $8F]
16 BIT SUBAUDIO
TEST READ DATA
[Read $91]
SUBAUDIO ANALOG
CONTROL
[Write $97]
BIT 15 / BIT 14 / BIT 13 / BIT 12 / BIT 11 / BIT 10 / BIT 9 /
BIT 7
BIT 6
BIT 5
BIT 4
BIT 3
BIT 2
BIT 1
BIT 8 /
BIT 0
MOD 2 switch bank Control
0/180
phase
select
SUB-
AUDIO
enable
AUDIO
enable
MOD 2 LEVEL
+/- 3.75dB in 0.25dB steps
MOD 1 switch bank Control
0/180
phase
select
SUB-
AUDIO
enable
AUDIO
enable
MOD 1 LEVEL
+/- 7.5dB in 0.5dB steps
SIGNED 16 Bit NUMBER PROPORTIONAL TO IF OFFSET, AUTOMATICALLY APPLIED
WHEN DEVICE IS IN RX MODE [SR] & ONE OF THREE SPECIFIC RF SYSTEM
MODES (FRS, GMRS, PMR 446) IS SELECTED IN [SGC]
IN GENERIC RF SYSTEM MODE (SELECTED IN [SGC]), SYNTHESIZED FREQUENCY
IS SET DIRECTLY VIA THESE 16 BITS AND BITS IN [SBCC] & [SCS] REGISTERS
SUBAUDIO TASK DATA WORD
SUBAUDIO TEST DATA WORD
SUBAUDIO TEST READ WORD
Subaudio filter path control
Subaudio filter path control
TX Level Control +/-7.5dB in 0.5dB steps
RX Level Control +/-7.5dB in 0.5dB steps
Table 5: 16 Bit Registers
5.1.2.1 GENERAL RESET ($01)
The reset command has no data attached to it. Application of the GENERAL RESET, sets all write only
register bits to ‘0’.
2003 CML Microsystems Plc
30
D/838/8
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