Command Information

A byte with bit 0 defined as follows:

Bit 0

If clear (0), the track layout contains nonconsecutive sectors or does not start with Sector 1. If set (1), the track layout starts with Sector 1 and contains only consecutive sectors.
Bit 1
Indicates that this is a multi-track request. For multi-track requests, the track table should contain a single entry.
All other bits are reserved and must be set to 0.