Intel IXP400 manual Sequence Flow Diagram for Slave Transmit in Interrupt Mode

Intel® IXP400 Software

I2C Driver (IxI2cDrv)

Figure 111. Sequence Flow Diagram for Slave Transmit in Interrupt Mode

hardware I2cDrv

interrupt: slave write

client

No buffer

slaveWriteCallback (request buf)

ixI2cDrvSlaveOrGenBufReplenish (memPtr,size) store buffer info

transmit data from buffer

buffer empty

slaveWriteCallback (send cur buf, request new buf)

ixI2cDrvSlaveOrGenBufReplenish (memPtr,size) store buffer info

transmit data from buffer

transmit complete slaveWriteCallback(send buf)

return clear interrupt

obtain memory buffer store data into buffer

reuse buffer

store data into buffer

return memory

B4376-01

Programmer’s Guide	IXP400 Software Version 2.0	April 2005
	Document Number: 252539, Revision: 007	337