FDC37C665IR SMSC Corporation, FDC37C665IR Datasheet - Page 58

• Manufacturer Part Number: FDC37C665IR
• Description: 3/5 Volt Advanced High-Performance Multi-Mode Parallel Port Super I/O Floppy Disk Controller with Infranred Support
• Manufacturer: SMSC Corporation

SC is returned if the last command that was issued was the Format command. EOT is returned if the
last command was a Read or Write.
NOTE: These bits are used internally only. They are not reflected in the Drive Select pins. It is the
user's responsibility to maintain correspondence between these bits and the Drive Select pins (DOR).
Command
Command
Result
Command
Result
PHASE
PHASE
PHASE
R/W
R/W
R/W
W
W
W
R
R
D7
OW
D7
LOCK
0
D7
0
D6
D6
----- Invalid Codes -----
0
0
------- ST0 -------
D6
PERPENDICULAR MODE
D5
0
0
D5
D3
0
DATA BUS
INVALID CODES
D5
D4
0
0
D4
D2
1
DATA BUS
DATA BUS
LOCK
D3
LOCK
58
D3
D1
D4
0
1
D2
D2
D0
0
D3
0
0
D1
GAP
D1
1
D2
1
0
D0
D1
WGATE
0
0
Invalid Command Codes
(NoOp - FDC37C665IR goes
into Standby State)
ST0 = 80H
D0
0
D0
0
0
REMARKS
Command Codes
Command Codes
REMARKS
REMARKS