Calibre UK UCA93 manual Int I2Cstatus, Using the Adapter

			CALIBRE
		Usually a data pointer would already have been written using WriteByte.
Functional description		Sends a start code and the slave address.
		The function waits for the address to be sent. Should a time-out occur during
		the sending of an address then an error code 8004H is returned, otherwise the
		status is returned.
3.3.6.	GetStatus
Function specification:		Int GetStatus(void)
Parameters are:		None
Parameters returned		int I2Cstatus
		The current value of the bus status is returned.
Prerequisites		Adapter must be configured using Setup.
Functional description		The function reads status word from the Adapter and returns it.
3.3.7.	Recover
Function specification		Int Recover(void)
Parameters are:		None
Parameters returned		int ErrCode.
		If the bus recovery failed error code 800FH is returned otherwise the status is
		returned.
Prerequisites		Adapter must be configured using Setup.
Functional description		This function clears all USB buffers and issues three consecutive stop
		commands on the bus, with a delay of about 5uS in between. It then clears the
		Adapter registers and reads the status. This should normally set the Adapter
		into a known idle state when a bus error or other problem has occurred.
		If the status does not indicate bus free or the Bus Error bit is still set then
		800FH is returned otherwise the status is returned.

3.3.8.SlaveLastByte

Function specification	void SlaveLastByte(void)
Parameters are:	None
Parameters returned	None.
Prerequisites	Adapter must be configured using setup. This function would normally only be
	called following the end of a transmission in slave write mode - when the
	Adapter is being read as a slave, by another master, not when writing to a slave
	using the Adapter.
Functional description	This function is used when the Adapter is a slave being read by a master
	elsewhere on the bus - the Adapter is in slave write mode. The function must
	be called immediately after the master indicates the last byte has been read (by
	not acknowledging that byte). This function is required to clear the I2C data
	lines so that the master can send a stop signal.

Issue 1.0	Page 9
01/07/03