Table 365 is a numerical order listing of the command operation codes.
Table 365: SCSI-2 Operation Codes
+=============================================================================+
| D - DIRECT ACCESS DEVICE Device Column Key |
| .T - SEQUENTIAL ACCESS DEVICE M = Mandatory |
| . L - PRINTER DEVICE O = Optional |
| . P - PROCESSOR DEVICE V = Vendor Specific|
| . .W - WRITE ONCE READ MULTIPLE DEVICE R = Reserved |
| . . R - READ ONLY (CD-ROM) DEVICE |
| . . S - SCANNER DEVICE |
| . . .O - OPTICAL MEMORY DEVICE |
| . . . M - MEDIA CHANGER DEVICE |
| . . . C - COMMUNICATION DEVICE |
| . . . . |
| OP DTLPWRSOMC Description |
|----------+----------+-------------------------------------------------------|
| 00 MMMMMMMMMM TEST UNIT READY |
| 01 M REWIND |
| 01 O V OO OO REZERO UNIT |
| 02 VVVVVV V |
| 03 MMMMMMMMMM REQUEST SENSE |
| 04 O FORMAT |
| 04 M O FORMAT UNIT |
| 05 VMVVVV V READ BLOCK LIMITS |
| 06 VVVVVV V |
| 07 O INITIALIZE ELEMENT STATUS |
| 07 OVV O OV REASSIGN BLOCKS |
| 08 M GET MESSAGE(06) |
| 08 OMV OO OV READ(06) |
| 08 O RECEIVE |
| 09 VVVVVV V |
| 0A M PRINT |
| 0A M SEND MESSAGE(06) |
| 0A M SEND(06) |
| 0A OM O OV WRITE(06) |
| 0B O OO OV SEEK(06) |
| 0B O SLEW AND PRINT |
| 0C VVVVVV V |
| 0D VVVVVV V |
| 0E VVVVVV V |
| 0F VOVVVV V READ REVERSE |
| 10 O O SYNCHRONIZE BUFFER |
| 10 VM VVV WRITE FILEMARKS |
| 11 VMVVVV SPACE |
| 12 MMMMMMMMMM INQUIRY |
| 13 VOVVVV VERIFY(06) |
| 14 VOOVVV RECOVER BUFFERED DATA |
| 15 OMO OOOOOO MODE SELECT(06) |
| 16 M MM MO RESERVE |
| 16 MM M RESERVE UNIT |
| 17 M MM MO RELEASE |
| 17 MM M RELEASE UNIT |
| 18 OOOOOOOO COPY |
| 19 VMVVVV ERASE |
| 1A OMO OOOOOO MODE SENSE(06) |
| 1B O LOAD UNLOAD |
| 1B O SCAN |
| 1B O STOP PRINT |
| 1B O OO O STOP START UNIT |
+=============================================================================+
Table 365: (continued)
+=============================================================================+
| D - DIRECT ACCESS DEVICE Device Column Key |
| .T - SEQUENTIAL ACCESS DEVICE M = Mandatory |
| . L - PRINTER DEVICE O = Optional |
| . P - PROCESSOR DEVICE V = Vendor Specific|
| . .W - WRITE ONCE READ MULTIPLE DEVICE R = Reserved |
| . . R - READ ONLY (CD-ROM) DEVICE |
| . . S - SCANNER DEVICE |
| . . .O - OPTICAL MEMORY DEVICE |
| . . . M - MEDIA CHANGER DEVICE |
| . . . C - COMMUNICATION DEVICE |
| . . . . |
| OP DTLPWRSOMC Description |
|----------+----------+-------------------------------------------------------|
| 1C OOOOOOOOOO RECEIVE DIAGNOSTIC RESULTS |
| 1D MMMMMMMMMM SEND DIAGNOSTIC |
| 1E OO OO OO PREVENT ALLOW MEDIUM REMOVAL |
| 1F |
| 20 V VV V |
| 21 V VV V |
| 22 V VV V |
| 23 V VV V |
| 24 V VVM SET WINDOW |
| 25 O GET WINDOW |
| 25 M M M READ CAPACITY |
| 25 M READ CD-ROM CAPACITY |
| 26 V VV |
| 27 V VV |
| 28 O GET MESSAGE(10) |
| 28 M MMMM READ(10) |
| 29 V VV O READ GENERATION |
| 2A O SEND MESSAGE(10) |
| 2A O SEND(10) |
| 2A M M M WRITE(10) |
| 2B O LOCATE |
| 2B O POSITION TO ELEMENT |
| 2B O OO O SEEK(10) |
| 2C V O ERASE(10) |
| 2D V O O READ UPDATED BLOCK |
| 2E O O O WRITE AND VERIFY(10) |
| 2F O OO O VERIFY(10) |
| 30 O OO O SEARCH DATA HIGH(10) |
| 31 O OBJECT POSITION |
| 31 O OO O SEARCH DATA EQUAL(10) |
| 32 O OO O SEARCH DATA LOW(10) |
| 33 O OO O SET LIMITS(10) |
| 34 O GET DATA BUFFER STATUS |
| 34 O OO O PRE-FETCH |
| 34 O READ POSITION |
| 35 O OO O SYNCHRONIZE CACHE |
| 36 O OO O LOCK UNLOCK CACHE |
| 37 O O READ DEFECT DATA(10) |
| 38 O O MEDIUM SCAN |
| 39 OOOOOOOO COMPARE |
| 3A OOOOOOOO COPY AND VERIFY |
| 3B OOOOOOOOOO WRITE BUFFER |
| 3C OOOOOOOOOO READ BUFFER |
| 3D O O UPDATE BLOCK |
| 3E O OO O READ LONG |
| 3F O O O WRITE LONG |
+=============================================================================+
Table 365: (continued)
+=============================================================================+
| D - DIRECT ACCESS DEVICE Device Column Key |
| .T - SEQUENTIAL ACCESS DEVICE M = Mandatory |
| . L - PRINTER DEVICE O = Optional |
| . P - PROCESSOR DEVICE V = Vendor Specific|
| . .W - WRITE ONCE READ MULTIPLE DEVICE R = Reserved |
| . . R - READ ONLY (CD-ROM) DEVICE |
| . . S - SCANNER DEVICE |
| . . .O - OPTICAL MEMORY DEVICE |
| . . . M - MEDIA CHANGER DEVICE |
| . . . C - COMMUNICATION DEVICE |
| . . . . |
| OP DTLPWRSOMC Description |
|----------+----------+-------------------------------------------------------|
| 40 OOOOOOOOOO CHANGE DEFINITION |
| 41 O WRITE SAME |
| 42 O READ SUB-CHANNEL |
| 43 O READ TOC |
| 44 O READ HEADER |
| 45 O PLAY AUDIO(10) |
| 46 |
| 47 O PLAY AUDIO MSF |
| 48 O PLAY AUDIO TRACK INDEX |
| 49 O PLAY TRACK RELATIVE(10) |
| 4A |
| 4B O PAUSE RESUME |
| 4C OOOOOOOOOO LOG SELECT |
| 4D OOOOOOOOOO LOG SENSE |
| 4E |
| 4F |
| 50 |
| 51 |
| 52 |
| 53 |
| 54 |
| 55 OOO OOOOOO MODE SELECT(10) |
| 56 |
| 57 |
| 58 |
| 59 |
| 5A OOO OOOOOO MODE SENSE(10) |
| 5B |
| 5C |
| 5D |
| 5E |
| 5F |
+=============================================================================+
Table 365: (concluded)
+=============================================================================+
| D - DIRECT ACCESS DEVICE Device Column Key |
| .T - SEQUENTIAL ACCESS DEVICE M = Mandatory |
| . L - PRINTER DEVICE O = Optional |
| . P - PROCESSOR DEVICE V = Vendor Specific|
| . .W - WRITE ONCE READ MULTIPLE DEVICE R = Reserved |
| . . R - READ ONLY (CD-ROM) DEVICE |
| . . S - SCANNER DEVICE |
| . . .O - OPTICAL MEMORY DEVICE |
| . . . M - MEDIA CHANGER DEVICE |
| . . . C - COMMUNICATION DEVICE |
| . . . . |
| OP DTLPWRSOMC Description |
|----------+----------+-------------------------------------------------------|
| A0 |
| A1 |
| A2 |
| A3 |
| A4 |
| A5 M MOVE MEDIUM |
| A5 O PLAY AUDIO(12) |
| A6 O EXCHANGE MEDIUM |
| A7 |
| A8 O GET MESSAGE(12) |
| A8 OO O READ(12) |
| A9 O PLAY TRACK RELATIVE(12) |
| AA O SEND MESSAGE(12) |
| AA O O WRITE(12) |
| AB |
| AC O ERASE(12) |
| AD |
| AE O O WRITE AND VERIFY(12) |
| AF OO O VERIFY(12) |
| B0 OO O SEARCH DATA HIGH(12) |
| B1 OO O SEARCH DATA EQUAL(12) |
| B2 OO O SEARCH DATA LOW(12) |
| B3 OO O SET LIMITS(12) |
| B4 |
| B5 |
| B5 O REQUEST VOLUME ELEMENT ADDRESS |
| B6 |
| B6 O SEND VOLUME TAG |
| B7 O READ DEFECT DATA(12) |
| B8 |
| B8 O READ ELEMENT STATUS |
| B9 |
| BA |
| BB |
| BC |
| BD |
| BE |
| BF |
+=============================================================================+