General characteristics
This 1-byte field defines certain general session characteristics.
These characteristics are:
- Bit setting 0123 4567
- (Byte 23) Meaning
..0. ....
- The primary logical unit can send data first.
..1. ....
- The secondary logical unit must send data first.
.... 0...
- The secondary logical unit initiates attended.
.... 1...
- The secondary logical unit initiates unattended.
.... .0..
- The secondary logical unit does not alternate between attended and unattended.
.... .1..
- The secondary logical unit alternates between attended and unattended.
xx.x ..xx
- Reserved.