LPC47M182 SMSC Corporation, LPC47M182 Datasheet - Page 140

• Manufacturer Part Number: LPC47M182
• Description: ADVANCED I/O CONTROLLER WITH MOTHERBOARD GLUE LOGIC
• Manufacturer: SMSC Corporation

7.33
7.34
Revision 1.8 SMSC/Non-SMSC Register Sets (02-24-05)
See Table 13.1 for nIDE_RSTDRV timing.
PCI Reset Output Pins
The nPCIRST_OUT is 3.3V buffered copy of nPCI_RESET. The nPCIRST_OUT2 is 3.3V buffered copy of
nPCI_RESET.
The nPCIRST_OUT and nPCIRST_OUT2 signals will be low when VCC=0.
See Table 13.2 for nPCI_RSTOUT and nPCI_RSTOUT2 timings.
Voltage Translation Circuit
DDCSDA_5V/ GP20
DDCSCL_5V/ GP21
DDCSDA_3V/ GP22
nIDE_RSTDRV
nPCIRST_OUT
nPCIRST_OUT2
nPCI_RESET
NAME
Table 7.30 – nPCIRST_OUT and nPCIRST_OUT2 Truth Table
NAME
NAME
INPUT
0
1
nPCI_RESET (Input)
Table 7.31 – Voltage Translation DDC Pins
Table 7.28 – nIDE_RSTDRV Truth Table
OD8
BUFFER
Table 7.29 – nPCIRST_OUT Pins
Table 7.27 – nIDE_RSTDRV Pin
0
1
IO_SW
IO_SW
IO_SW
OP14
OP14
BUFFER
DATASHEET
BUFFER
nPCIRST_OUT
VCC
POWER
WELL
POWER
VTR
VTR
140
WELL
0
1
POWER
VTR
VTR
VTR
WELL
nIDE_RSTDRV (Output)
IDE Reset Output
OUTPUTS
Buffered PCI Reset Output
Buffered PCI Reset Output
(Note)
5V DDC Clock IOD/ GPIO
(Note )
(Note)
5V DDC Data IOD/ GPIO
3.3V DDC Data IOD/ GPIO
DESCRIPTION
DESCRIPTION
Hi-Z
Advanced I/O Controller with Motherboard GLUE Logic
0
nPCIRST_OUT2
DESCRIPTION
0
1
SMSC LPC47M182
Datasheet