I used the LPC844 I2C module in slave mode. But the another MCU works very faster than LPC844. So, I need that LPC844 could hold SCL clock line low after a complete I2C transmission, indicating that it is busy now. After LPC844 complete the current process, LPC844 release SCL single, then the main MCU could operate I2C bus normally.
I do not find this function in user manual. How to realize these I2C operation in software?
Hope to help to settle my question. Thanks!!!