User's Manual

LS9 User Guide
Libre Wireless Technologies User Guide: LS9, Ver. 3.3.1 Page 36 of 93
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5.7. I2S M-Clock
M-Clock is supported at frequency of 12MHz and 12.288MHz. M-Clock by default is set to
12MHz.
NV-Item MCLK is used to edit the frequencies of the I2S M-Clock. The syntax below
provides the commands to edit MCLK.
To set the MCLK at 12MHz
#setenv MCLK <<12000000>>
To set the MCLK at 12.288MHz
# setenv MCLK <<12288000>>
5.8. ACP
NV-Item ACPpresent enables detection of the Apple Co-processor for ACP certificate
validation. By default the NV-Item ACPpresent is set as 1.
The syntax below provides command to enable or disable ACP presence detection.
Enable
#setenv ACPpresent <<1>>
Disable
# setenv ACPpresent <<0>>
5.9. Model Name
The NV-Item Model is used to set the model name for the Speaker or the device. The model
name can be any name of the user choice. The Maximum length of the model name is 63
characters.
The default Model Name for LS-Enabled speakers is LibreSync. You can change the model
name by editing the NV-Item Model.