FDC37M81x SMSC Corporation, FDC37M81x Datasheet - Page 110

• Manufacturer Part Number: FDC37M81x
• Description: PC98/99 Compliant Enhanced Super I/O Controller
• Manufacturer: SMSC Corporation

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.
Table 45 - State of Floppy Disk Drive Interface Pins in Powerdown
DRVDEN[0:1]
nDSKCHG
FDD PINS
nWPROT
nWGATE
nWDATA
nRDATA
nHDSEL
nINDEX
nMTR0
nTRK0
nSTEP
nDS0
nDIR
Pins used
OUTPUT PINS
INPUT PINS
STATE IN AUTO POWERDOWN
110
for local logic control or part programming are
unaffected.
floppy disk drive interface pins in the powerdown
state.
Tristated
Tristated
Tristated
Tristated
Active
Active
Active
Active
Input
Input
Input
Input
Input
Table 45 depicts the state of the