FDC37C665IR SMSC Corporation, FDC37C665IR Datasheet - Page 114
FDC37C665IR
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
Datasheet
1.FDC37C665IR.pdf
(162 pages)
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FDD Interface Pins
All pins in the FDD interface which can be
connected directly to the floppy disk drive itself
are either DISABLED or TRISTATED. Pins used
Table 47 - State of Floppy Disk Drive Interface Pins in Powerdown
MOTEN[0:3]
DRATE[0:1]
FDD Pins
WRDATA
DSKCHG
DENSEL
RDATA
DS[0:3}
HDSEL
DRV2
STEP
TRK0
INDX
WP
DIR
WE
Output Pins
Input Pins
State in Auto Powerdown
114
for local logic control or part programming are
unaffected. Table 47 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
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