LPC47M14R-NC View Datasheet(PDF) - SMSC -> Microchip
Part Name
Description
MFG CO.
LPC47M14R-NC
SMSC -> Microchip
'LPC47M14R-NC' PDF : 205 Pages View PDF
System Interface Pins
Table 48 gives the state of the interface pins in the powerdown state. Pins unaffected by the powerdown are labeled
“Unchanged.”
Table 48 – State of System Pins in Auto Powerdown
SYSTEM PINS
LAD[3:0]
LDRQ#
LPCPD#
LFRAME#
PCI_RESET#
PCI_CLK
SER_IRQ
STATE IN AUTO POWERDOWN
Unchanged
Unchanged
Unchanged
Unchanged
Unchanged
Unchanged
Unchanged
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 for local logic control or part programming are unaffected.
Table 49 depicts the state of the floppy disk drive interface pins in the powerdown state.
Table 49 – State of Floppy Disk Drive Interface Pins in Powerdown
FDD PINS
nRDATA
nWRTPRT
nTRK0
nINDEX
nDSKCHG
nMTR0
nDS0
nDIR
nSTEP
nWDATA
nWGATE
nHDSEL
DRVDEN[0:1]
STATE IN AUTO POWERDOWN
INPUT PINS
Input
Input
Input
Input
Input
OUTPUT PINS
Tristated
Tristated
Active
Active
Tristated
Tristated
Active
Active
SMSC DS – LPC47M14X
Page 96
Rev. 03/19/2001
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