Copyright(C) 1994 Terumasa KODAKA , Takeshi KONO
â– SCSI interface common BIOS
INT 1Bh - Function 00h (common to SCSI)
Classification SCSI BIOS
Name RESET
Target SCSI
Input AH=00h
AL=Cxh (x is any value between 0 and 7)
DX=operation mode setting parameter (DH=00h, DL=80H: Timeout Period)
Output CF, AH=end status
AL=Cnh (n is OWN SCSI bus ID)
Explanation o Initializes the WD33C93 on the SCSI I/F board.
o For details, see the "SCSI Interface Technical Book" (published by Coral).
Related 0000:04BCh
INT 1Bh - Function 03h (common to SCSI)
Classification SCSI BIOS
Name NEGATE ACK
Target SCSI
Input AH=03h
AL=Cnh (n is SCSI ID)
Output CF,ZF,AH=Exit status
Explanation o Negates the asserted state of ACK.
Used after the MESSAGE IN phase.
o For details, see "SCSI Interface Technical Book" (published by Coral).
Related
INT 1Bh - Function 07h (Common to SCSI)
Classification SCSI BIOS
Name SELECT-WITHOUT-ATN
Target SCSI
Input AH=07h
AL=Cnh (n is SCSI ID)
Output CF,ZF,AH=Exit status
Explanation o Selects the target following bus arbitration.
Do not assert ATN while selection is in progress.
If selection is successful, transition to command phase.
o For details, see "SCSI Interface Technical Book" (published by Coral).
Related
INT 1Bh - Function 09h (Common to SCSI)
Classification SCSI BIOS
Name SELECT-WITHOUT-ATN & TRANSFER
Target SCSI
Input AH=09h
AL=Cnh (n is SCSI ID)
ES:BX=Data address
CX=Data length
DS:DX=Parameter address
<Parameter table format>
-------------+-------------
Address | Contents
-------------+-------------
ES:BX+00h | Target LUN
ES:BX+01h | Transfer direction
ES:BX+02h | CDB length
ES:BX+03h | Reserve
ES:BX+04-0Fh | CDB (12 bytes)
-------------+-------------
Output CF,ZF,AH=Exit status
ES:BX=Remaining data address
CX=Remaining data length
Explanation o Combination Commands
Supports groups 0 (CDB 6 bytes), 1 (CDB 10 bytes), and 5 (CDB 12 bytes).
o For details, see the "SCSI Interface Technical Book" (published by Coral).
Related
INT 1Bh - Function 18h (Common to SCSI)
Classification SCSI BIOS
Name TRANSFER DATA OUT
Target SCSI
Input AH=18h
AL=Cnh (n is SCSI ID)
ES:BX=Data address
CX=Data length
Output CF,ZF,AH=Exit status
ES:BX=Remaining data address
CX=Remaining data length
Explanation o Transmits data.
o For details, see "SCSI Interface Technical Book" (published by Coral).
Related
INT 1Bh - Function 19h (Common to SCSI)
Classification SCSI BIOS
Name TRANSFER DATA IN
Target SCSI
Input AH=19h
AL=Cnh (n is SCSI ID)
ES:BX=Data address
CX=Data length
Output CF,ZF,AH=Exit status
ES:BX=Remaining data address
CX=Remaining data length
Explanation o Receives data.
For details, see the "SCSI Interface Technical Book" (published by Coral).
INT 1Bh - Function 1Ah (Common to SCSI)
Classification SCSI BIOS
Name TRANSFER COMMAND
Target SCSI
Input AH=1Ah
AL=Cnh (n is SCSI ID)
ES:BX=Data address
CX=Data length
Output CF,ZF,AH=Exit status
ES:BX=Remaining data address
CX=Remaining data length
Explanation o Sends a command.
o For details, see "SCSI Interface Technical Book" (published by Coral).
Related
INT 1Bh - Function 1Bh (Common to SCSI)
Classification SCSI BIOS
Name TRANSFER STATUS IN
Target SCSI
Input AH=1Bh
AL=Cnh (n is SCSI ID)
ES:BX=Data address
CX=Data length
Output CF,ZF,AH=Exit status
ES:BX=Remaining data address
CX=Remaining data length
Explanation o Receives a status.
For details, see the "SCSI Interface Technical Book" (published by Coral).
INT 1Bh - Function 1Ch (Common to SCSI)
Classification SCSI BIOS
Name TRANSFER UNSPECIFIED INFO. OUT
Target SCSI
Input AH=1Ch
AL=Cnh (n is SCSI ID)
ES:BX=Data address
CX=Data length
Output CF,ZF,AH=Exit status
ES:BX=Remaining data address
CX=Remaining data length
Explanation o Sends unspecified information.
A function prepared for future standard expansion.
o For details, see "SCSI Interface Technical Book" (published by Coral).
Related
INT 1Bh - Function 1Dh (common to SCSI)
Classification SCSI BIOS
Name TRANSFER UNSPECIFIED INFO. IN
Target SCSI
Input AH=1Dh
AL=Cnh (n is SCSI ID)
ES:BX=Data address
CX=Data length
Output CF,ZF,AH=Exit status
ES:BX=Remaining data address
CX=Remaining data length
Explanation o Receives unspecified information.
A function prepared for future standard expansion.
o For details, see "SCSI Interface Technical Book" (published by Coral).
Related
INT 1Bh - Function 1Eh (common to SCSI)
Classification SCSI BIOS
Name TRANSFER MESSAGE OUT
Target SCSI
Input AH=1Eh
AL=Cnh (n is SCSI ID)
ES:BX=Data address
CX=Data length
Output CF,ZF,AH=Exit status
ES:BX=Remaining data address
CX=Remaining data length
Explanation o Sends a message.
o For details, see "SCSI Interface Technical Book" (published by Coral).
Related
INT 1Bh - Function 1Fh (common to SCSI)
Classification SCSI BIOS
Name TRANSFER MESSAGE IN
Target SCSI
Input AH=1Fh
AL=Cnh (n is SCSI ID)
ES:BX=Data address
CX=Data length
Output CF,ZF,AH=Exit status
ES:BX=Remaining data address
CX=Remaining data length
Explanation o Receives a message.
o For details, see "SCSI Interface Technical Book" (published by Coral).
Related