Calibre UK UCA93 manual Int DataByte, SendAddress, Int I2CData, None

			CALIBRE
	WriteByte
Function specification		Int WriteByte(int DataByte)
Parameters are:		int DataByte
		This is the byte of data to be written.
Parameters returned		int ErrCode.
		If the transfer time out occurs error code 8002H is returned otherwise the
		status is returned.
Prerequisites		Adapter must be configured using Setup, start and write address sent by
		SendAddress.
Functional description		The function writes the data to the Adapter and then waits for it to be sent.
		Should a time-out occur during the sending of the data then error code 8002H
		is returned, otherwise the status is returned.
		WriteByte is compatible with both master write and slave write modes.
3.3.3.	ReadByte
Function specification		Int ReadByte(int SetNack)
Parameters are:		int SetNack
		This controls whether the Adapter transmits an acknowledge down the I2C bus
		on reception of a byte. The last byte received during a transfer must not be
		acknowledged, in all other cases acknowledge must be enabled. If SetNack = 0
Parameters returned		then acknowledge is enabled, if SetNack = 1 then acknowledge is disabled.
		int I2CData
		If a time-out occurs the ErrCode 8003H is returned, otherwise the data is
		returned.
Prerequisites		Adapter must be configured using Setup, start and read address sent by
		SendAddress.
Functional description		The data is read from the Adapter.
		ReadByte is compatible with both master read and slave read modes.
3.3.4.	SendStop
Function specification		Int SendStop(void)
Parameters are:		None
Parameters returned		int ErrCode.
		If the transfer time out occurs error code 8006H is returned otherwise the
		status is returned.
Prerequisites		Adapter must be configured using Setup. Should normally only be used at the
		end of a transmission. Correct acknowledge sequence must have been applied
		if the transmission was a read.
Functional description		Instructs the Adapter to send a stop code and wait for it to be sent.
		Should a time-out occur during the sending of a stop then an error code 8006H
		is returned, otherwise the status is returned.
3.3.5.	Restart
Function specification		Int Restart(int SlaveAddress, int SetNack)
Parameters are:		int slaveaddress
		The address to be accessed via the I2C, e.g. A1H.
		int SetNack
		This controls whether the Adapter transmits an acknowledge down the I2C bus
		on reception of a byte. The last byte received during a transfer must not be
		acknowledged, in all other cases acknowledge must be enabled. If SetNack = 0
		then acknowledge is enabled, if SetNack = 1 then acknowledge is disabled. It is
Parameters returned		normal to read data after a restart and hence SetNack will normally be 0.
		int ErrCode
		If the transfer time out occurs error code 8004H is returned otherwise the
		status is returned.
Prerequisites		Adapter must be configured using Setup. A start and slave address must have
		previously been sent using SendAddress.
Issue 1.0				Page 8
01/07/03