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TLV32AIC3120 Page 0 register 71

Dave 1024
Intellectual 470 points
Other Parts Discussed in Thread: TLV320AIC3120

Is there any information about page 0 register 71 (0x47) for the TLV320AIC3120? The data sheet says it is reserved, and I should not write to it. The scope shows that register being written every time the device is initialized on the EVM board. It looks like there are useful features that are not documented such as the built-in tone generator. The EVM board supports that feature via register 71, and it works fine, but I cannot find anything in the documentation about how to set it up. Any suggestions?

Thanks -

Dave