SNLS477B October 2014 – November 2018 DS90UB948-Q1
SCL_LOW_TIME is described in Table 51.
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|7-0||SCL_LOW_TIME||R/W||0x84|| I2C SCL Low Time
This field configures the low pulse width of the SCL output when the De-Serializer is the Master on the local I2C bus. This value is also used as the SDA setup time by the I2C Slave for providing data prior to releasing SCL during accesses over the Bidirectional Control Channel. Units are 50 ns for the nominal oscillator clock frequency. The default value is set to provide a minimum 5us SCL low time with the internal oscillator clock running at 26MHz rather than the nominal 20MHz.