LPC47M172_07 SMSC [SMSC Corporation], LPC47M172_07 Datasheet - Page 23

• Manufacturer Part Number: LPC47M172_07
• Description: Advanced I/O Controller with Motherboard GLUE Logic
• Manufacturer: SMSC [SMSC Corporation]

3.2
3.3
SMSC/Non-SMSC Register Sets (Rev. 01-11-07)
Pins With Internal Resistors
The following pins have internal resistors:
Pins That Require External Resistors
The following pins require external resistors:
nCPU_PRESENT
nFPRST
nPRIMARY_HD
PWRGD_PS
nSCSI
nSECONDARY_HD
TEST_EN
SER_IRQ
nLDRQ
LAD[3:0]
MCLK
MDAT
KCLK
KDAT
GA20M
KBDRST
nIO_PME
nHDSEL
nWGATE
nWDATA
nSTEP
nDIR
nDS0
nMTR0
DRVDEN1
DRVDEN0
nDSKCHG
nRDATA
nWRTPRT
nTRK0
nINDEX
REF5V
REF5V_STBY
SIGNAL NAME
SIGNAL NAME
Table 3.3 - Pins that Require External Resistors
Table 3.2 - Pins with Internal Resistors
DATASHEET
30uA
30uA
30uA
30uA
30uA
30uA
30uA
10 kohm
100 kohm
100 kohm
2.7 kohm
10 kohm
10 kohm
10 kohm
10 kohm
10 kohm
10 kohm
10 kohm
10 kohm
10 kohm
10 kohm
10 kohm
10 kohm
1 kohm
1 kohm
1 kohm
1 kohm
10 kohm
1 kohm
1 kohm
RESISTOR VALUE
RESISTOR VALUE
Page 23
Pull-up to VTR
Pull-up to VTR
Pull-up to VCC
Pull-up to VTR
Pull-up to VCC
Pull-up to VCC
Pull-down to VSS
Pull-up to VCC
Pull-up to VCC
Pull-up to VCC
Pull-up to VREG_PS2. The
VREG_PS2 is the voltage
regulator for the PS/2 ports.
Pull-up to VCC
Pull-up to VCC
Pull-up to VTR
Pull-up required if used as
Open-Drain Output.
Pull-up to VCC.
Pull-up to VCC
Pull-up to VCC
Pull-up to VCC
Pull-up to VCC
Pull-up to VCC
Pull-up to VCC5V
Pull-up to V_5P0_STBY
Advanced I/O Controller with Motherboard GLUE Logic
NOTES
NOTES
SMSC LPC47M172
Datasheet