UART Baudrate accuracy of CY7C65211/CY7C65215

[YoIs_1298666]

Hello,

We would like to know the UART Baudrate accuracy of Y7C65211/CY7C65215.

We can see the difference of baudrate settings like below.

Non-Standard Baud Rates in USB-Serial Bridge Controllers - KBA92442

I have a question about "PCLK = 48 MHz" accuracy.

If the PCLK is Internal 48 MHz OSC, isn't this CLK error added?

Best regards,

Yocchi

[HirotakaT_91 · Accepted solution]

Hello,

PCLK is 48MHz +/- 2% accuracy for CY7C65211/215.

Although the KBA you mentioned is not considered the PCLK error, the best way is to include this error for the accurate calculation.

Anyway, to meet the margin within +/-5% is not difficult even if you consider the PCLK error.

Best regards,

Hirotaka Takayama

[YoIs_1298666]

Hello Takayama-san,

I agree with you.

PCLK has +/- 2% accuracy.

Thank you.

Best regards,

Yocchi