Specifications

ATAPI For Streaming Tape QIC-157 Rev B
62
SENSE request of 3Fh in the page code field. The Sense Key shall be set to ILLEGAL REQUEST and
the Additional Sense Code shall be set to INVALID FIELD IN COMMAND PACKET. This
limitation ensures compatibility with the SCSI standard.
6.8.8.9. Current Values
A PC field value of 0h requests the Device to return the current parameter values for the specified
page code. The current values returned are:
1. The parameters set in the last successful MODE SELECT command.
2. The default values if a MODE SELECT command has not been executed since the last power-on,
hard RESET condition, or ATAPI Soft Reset.
Table 6-34 Recommended Sense Key, ASC and ASCQ for MODE SENSE Errors
Sense Key ASC ASCQ Description of Error
02 04 00 NOT READY, CAUSE NOT REPORTABLE
05 20 00 INVALID COMMAND OPERATION CODE
05 24 00 INVALID FIELD IN COMMAND PACKET
06 28 00 NOT READY TO READY TRANSITION
06 29 00 POWER ON, RESET, OR ATAPI SOFT RESET OCCURRED