DATA PROCESSOR AND DATA PROCESSING METHOD

摘要

PROBLEM TO BE SOLVED: To accept a command during processing of another command when a device with an ATAPI_I/F or ATA_I/F is 1394-connected as a standard OS such as Windows(R) or Macintosh(R) and a drive device are connected with a 1394 I/F. SOLUTION: A packet filter 6 for sorting packets addressed to a CPU and a transfer control circuit 7 in dependence on situations optimizes command processing. A transfer control circuit 8 for independently handling command processing to a drive keeps the CPU 3 unoccupied. COPYRIGHT: (C)2005,JPO&NCIPI