LPC47M14B-NC View Datasheet(PDF) - SMSC -> Microchip
Part Name
Description
MFG CO.
LPC47M14B-NC
SMSC -> Microchip
'LPC47M14B-NC' PDF : 205 Pages View PDF
PHASE
Command
Execution
Result
READ ID
DATA BUS
R/W D7 D6 D5 D4 D3 D2 D1 D0
REMARKS
W 0 MFM 0 0 1 0
1
0 Commands
W 0 0 0 0 0 HDS DS1 DS0
The first correct ID
information on the
Cylinder is stored in
Data Register
R
ST0
Status information after
Command execution.
Disk status after the
Command has
completed
R
ST1
R
ST2
R
C
R
H
R
R
R
N
PHASE
Command
PERPENDICULAR MODE
DATA BUS
R/W D7 D6 D5 D4 D3 D2 D1
D0
REMARKS
W
0 00100
1
0 Command Codes
OW 0 D3 D2 D1 D0 GAP WGATE
PHASE
Command
Result
INVALID CODES
DATA BUS
R/W D7 D6 D5 D4 D3 D2 D1 D0
REMARKS
W
Invalid Codes
Invalid Command Codes
(NoOp - FDC goes into Stand-
by State)
R
ST0
ST0 = 80H
PHASE
Command
Result
LOCK
DATA BUS
R/W
D7
D6 D5
D4
D3 D2 D1 D0
REMARKS
W LOCK 0 0
1
0 1 0 0 Command Codes
R
0
0 0 LOCK 0 0 0 0
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).
SMSC DS – LPC47M14X
Page 49
Rev. 03/19/2001
Share Link: 