5.1.6 I2C_BusRecovery Command and its Response

The I2C_BusRecovery command (0x4E) generates up to nine clock pulses on the SCL line and attempts to issue an I²C Stop condition.

This command is typically used after a clock-stretch timeout or when the I²C bus does not return to the Idle state.

This command is sent through Endpoint 0x03 (OUT) and the response is read through Endpoint 0x83 (IN).

Table 5-17. `I2C_BusRecovery` - Command
Byte Index	Command		Description
0	`0x4E`	Command code	Attempts I²C bus recovery by generating up to nine SCL clock pulses and issuing an I²C STOP condition

Table 5-18. `I2C_BusRecovery` - Response
Byte Index	Response		Description
0	`0x4E`	Return command code	Returns whether the command code was accepted
1	`0x20`	Accepted – success	Bus recovery completed successfully; the I²C bus is released and in the idle state
	`0x60`	Rejected – no `ClkLowTimeout`	Rejected because no clock-stretch timeout has occurred
	`0x8C`	Accepted – failure	The I²C bus is not released and is not in the idle state