The Direct Method (Clock Stretching) involves delaying the acknowledge or data to the I²C Master by the SN65DSI86 driving the SCL pin low. Once the SN65DSI86 is ready to acknowledge an I²C write transaction or return read data for a I²C read transaction, the SN65DSI86 will tri-state the SCL pin therefore allowing the acknowledge cycle to complete.

In order to enable the Direct Method (Clock Stretching) software must do the following:

1. Program the 7-bit I²C slave address(s) into the I2C_ADDR_CLAIMx register(s).
2. Enable Direct Method by setting the I2C_CLAIMx_EN bit(s)