Inquiry Command; Inquiry Command: Command Phase (Initiator → Target) - Fujitsu Scan Partner 300C Instruction Manual

If the 3rd party reservation option is not supported, setting this bit to 1 causes the target to return the
following error;
•
Status key: B'0000I'(CHECKCONDITION)
•
Sense key: X~5'(ILLEGAL REQUEST)
This scanner does not support the 3rd party reservation option.
(b) TPID (third party device

4.4.3 INQUIRY command

The following table shows the normal sequence of the INQUIRY command when used with this scanner.
Step Bus phase
1 BUS FREE
ARBITRATION ON
2
3 SELECTION
MESSAGE OUT
4
COMMAND
5
DATA IN
6
STATUS
7
MESSAGE IN
8
9 BUS FREE
INQUIRY command: COMMAND phase (initiator → target)
4.4.3.1
The INQUIRY command checks information regarding a target and logical unit.
The CDB of this command is shown in the following illustration.
ID):
Byte 1 This scanner ignores TPID.
Table 4-10 INQUIRY command
Initiator operation
Verifies bus free
Obtains bus-usage right
Selects target
Selects logical unit
Specifies INQUIRY (CBD)
4-22
← ← → →
Target operation
→
Drives BSY signal
→
→
←
Reports inquiry data
←
Reports GOOD status
←
Reports message (Command Complete
Releases BSY signal