Specifications

ATAPI For Streaming Tape QIC-157 Rev B
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I. Revision History
Changes for Revision B:
Many clarifications and simplifications were made throughout the specification. Usage of drive seek complete (DSC)
line and byte count register have been clarified. All transfer lengths are a multiple of 4 bytes. The incomplete floppy
backward compatible model has been removed. Physical block addressing has been removed. The read position
command has been simplified. Various mode pages have been removed and only current values are reportable. Various
log pages have been removed and logging capabilities have been eliminated such as save parameters and various page
control options. It should be noted that items not documented in this specification can be implemented, but are not
considered a required element of an ATAPI drive.