EV8380 Datasheet, PDF (9/29 Pages) CML Microcircuits – Family Radio Processor

Evaluation Kit for CMX838 Family Radio Processor
9
EV8380 User Manual
CMX838 Register Name
GENERAL RESET
AUDIO POWER AND BANDWIDTH CONTROL
SYNTHESIZER BASEBAND CLK CONTROL
SETUP REGISTER
AUDIO CONTROL
SYNTHESIZER GENERAL CONTROL
SYNTHESIZER CHANNEL SELECT
SYNTHESIZER 1ST IF OFFSET
SYNTHESIZER STATUS
SUBAUDIO GENERAL CONTROL
SUBAUDIO STATUS
8 BIT SUBAUDIO TASK DATA
16 BIT SUBAUDIO TASK DATA
SUBAUDIO ANALOG LEVEL CONTROL
TX MOD 1&2 CONTROL
RX VOLUME CONTROL
Register
CMX838
Address function area
01
system
83
system
89
system
80
audio
81
audio
8A
synthesizer
8B
synthesizer
8D
synthesizer
8C
synthesizer
93
subaudio
94
subaudio
95
subaudio
8E
subaudio
97
subaudio
88
output
82
output
Appropriate
C-BUS Script
Command
W1
W2
W2
W2
W2
W2
W2
W3
R2
W2
R2
W2
W3
W3
W3
W2
Table 3, CMX838 Registers and Valid C-BUS Script Commands
3.2.6.3 Pause Type Commands
Pauses are supported to allow the installed CMX838 to ‘dwell’ in a configured state for an extended period.
For example, the CMX838 may be configured to emit an audio tone and script pause commands may be used
to determine the length of the tone before it is turned off.
One pause command is of a fixed duration. The other has a maximum duration but is terminated when the
CMX838 asserts its hardware interrupt.
Script
Description
NOTE
command
T
Pause for the specified number of 10uS ‘ticks’ written in decimal The maximum valid
form e.g. an argument value of 6500 yields a pause duration of
argument value is 6500.
65mS.
I
Pause for the specified number of 10uS ‘ticks’ in decimal form but The maximum valid
terminate the pause immediately upon receiving a CMX838
argument value is 6500.
interrupt.
Table 4, Pause Type Commands
NOTES:
1. Argument must be in decimal form without any preceding characters such as “0d”.
2. The “I” script command is the letter “i”, not the letter “L”.
3.2.6.4 Script Example
A short segment of sample script follows. Note there are tabs between each field that are not visible in this
document.
// general reset
W1 01
W2 89 40 // clock control base band from XTAL 4MHz
T
6500
// pause 65mS
T
6500
// pause 65mS
T
6500
// pause 65mS
W2 80 DE // TX mode, Aux I/O Selected, HPF Out to LPF/Lim In
W2 81 61 // LPF + -7.5 dB Gain
W2 82 24 // Bypass de-emphasis, Rx out Gain = -28.5 dB
W2 83 56 // audio lowest current mode with Narrow Band LPF
W3 88 503F // Audio & Sub-audio on Mod2 0dB, Audio on Mod1 7.5dB
W3 97 1010 // Sub Audio Analog Levels
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