Audio Codec Adapter Setup for Cinterion
®
Modules
2.1 MAX9860 Audio Codec Adapter
33
audio_codec_adapter_setup_v04 2019-10-16
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Commands are case insensitive, blanks are ignored.
Commands without "=" are typically status requests (i.e., READ commands), and commands
with "=" are assignments or settings (i.e., WRITE commands).
Commands must be terminated with at least "\r" = 0x0D (under Windows). End of line is entered
as "\r\n" = 0x0D, 0X0A (under Windows).
2.1.3 Block Diagram
Figure 5 shows a block diagram of the Audio Codec Adapter. For further details please refer to
the schematics given in chapter 5.
Figure 5: Block diagram
SINUS=<Hz>, <dur>
local/netw
Generates a sine wave to the headset (<local>) or module (<netw>). See also
Section 3.1.2.3.
DSP=detect Detects audio frequencies in local input signals. See also Section 3.1.2.4.
Reset Resets audio codec adapter
Table 1: Terminal mode commands
Command Description/Remark
RS232
Interface
DSB75
connector
MCU
DIP
switch
Ext.
I2C
Codec
Headphone
Microphone
Handset
UART
I2C
PCM/I2S
I2C
PCM/I2S
1 2
3
1
2
I2C:Eitherpath1orpath2isactivated.
CodecisworkingonlyinslavemodeforI2C
PCM/I2S:Eitherpath1orpath2orpath3isactivated.