Hello team,
My customer found 948 in their display output I2S/MCLK from GPIO8/9. and they are aware those clock output worsen some EMI performance.
It looks SER 949 enable I2S unintentionally.
Could you pls let me know how to forced disable I2S feature at DES not to have those clock output??
Or only what I found is GPIO8/9 configuration to low to disable this clock output.
Thank you.
Hi Harry,
Customer can override the 949 configurations in 948 register 0x22[7]. When the forward channel loading of registers are disabled, the deserializer can control the I2S configurations locally.
Best,
Shu
Hello Shu,
Thanks for quick response.
I tried disable I2S by setting 0x22bit[7] and 0x22 bit[2] to disable I2S but it doesn't work.
so I tested again and confirmed 0x28 bit[7] works instead of 0x22 bit[7] to disable I2S.
When I configure bit[7] and bit[2] to high for 0x28, there is no clock output on GPIO9/8.
I believe I can use this.. right?
Thank you.
