A hard disk controller integrated circuit of a SCSI target device comprises a sequencer which causes a SCSI bus to transition from a command bus phase to a data transfer bus phase during execution of an autoread or an autowrite SCSI command without waiting for a communication from a microprocessor of...http://www.google.com.au/patents/US5634081?utm_source=gb-gplus-sharePatent US5634081 - System for starting and completing a data transfer for a subsequently received autotransfer command after receiving a first SCSI data transfer command that is not autotransfer