FDC37C78_07 SMSC [SMSC Corporation], FDC37C78_07 Datasheet - Page 61
FDC37C78_07
Manufacturer Part Number
FDC37C78_07
Description
Floppy Disk Controller
Manufacturer
SMSC [SMSC Corporation]
Datasheet
1.FDC37C78_07.pdf
(82 pages)
- Current page: 61 of 82
- Download datasheet (348Kb)
FDD Interface Pins
All pins in the FDD interface which can be
connected directly to the floppy disk drive itself are
either
DISABLED
Table 32 - State of Floppy Disk Drive Interface Pins in Powerdown
or
TRISTATED.
MOTEN[0:3]
DRATE[0:1]
FDD Pins
WRDATA
DSKCHG
DENSEL
RDATA
DS[0:3]
HDSEL
DRV2
TRK0
STEP
INDX
WP
DIR
WE
Pins
Output Pins
Input Pins
State in Auto Powerdown
61
used
programming are unaffected. Table 32 depicts the
state of the floppy disk drive interface pins in the
powerdown state.
Tristated
Tristated
Tristated
Tristated
Active
Active
Active
Active
Active
Input
Input
Input
Input
Input
Input
for
local
logic
control
or
part
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