Space Command - Seagate STT20000A Product Manual

Chapter 5

Space command

Bit 7
Byte
0
1
2 (MSB)
3
4
5
Page 60
6 5
Reserved
The only Space codes that are supported are 001b (Filemarks) and 011b (End of
Data on Current Partition). For Space Filemarks, negative count (2s compliment)
indicates Space Filemarks Reverse.
The DSC bit is reset (0) after this command is accepted and is set (1) when the
command is completed and the drive is ready. REQUEST SENSE can then be used
to verify successful command completion.
4 3
Operation code (11h)
Count
Reserved
ATAPI Interface
2 1
Space Code
STT20000A Product Manual
0
(LSB)