LAUNCHXL-F28379D: I2C peripheral Clocking

Prasad Rao

Part Number: LAUNCHXL-F28379D

Dear Sir/ Madam,

If I2caRegs.I2CPSC.all = 6;. How the I2C peripheral clock is 7-12Mhz, I am not able to understand the relation and how the clock frequency is reduced??.

over 4 years ago

0 Prasad Rao over 4 years ago

Prodigy 220 points

I am able to understand relation between SYSCLK and I2CCLK. Please help me in understand this .

-Thanks and Regards

Prasad

0 Prasad Rao over 4 years ago in reply to Prasad Rao

Prodigy 220 points

Sorry, I made mistake while typing. Please help me in understand this. I am not able to understand relation between SYSCLK and I2CCLK.

-Thanks and Regards

Prasad

+1 Manoj Santha Mohan over 4 years ago in reply to Prasad Rao

TI__Guru 55700 points

Prasad,

Relationship between I2C Module clock frequency and SYSCLK clock is shown below. This snippet is taken from F28377Dx TRM.

If SYSCLK = 200 MHz

I2CPSC should be set to 19 to achieve 10 MHz I2C module clock frequency.

Regards,

Manoj

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LAUNCHXL-F28379D: I2C peripheral Clocking