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LPC47M172_07 Datasheet

  • LPC47M172_07

  • SMSC Corporation [Advanced I/O Controller with Motherboard ...

  • 1113.49KB

  • SMSC   SMSC

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Advanced I/O Controller with Motherboard GLUE Logic
Datasheet
3.2
Pins With Internal Resistors
The following pins have internal resistors:
Table 3.2 - Pins with Internal Resistors
SIGNAL NAME
nCPU_PRESENT
nFPRST
nPRIMARY_HD
PWRGD_PS
nSCSI
nSECONDARY_HD
TEST_EN
RESISTOR VALUE
30uA
30uA
30uA
30uA
30uA
30uA
30uA
NOTES
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
3.3
Pins That Require External Resistors
The following pins require external resistors:
Table 3.3 - Pins that Require External Resistors
SIGNAL NAME
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
RESISTOR VALUE
10 kohm
100 kohm
100 kohm
2.7 kohm
NOTES
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.
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
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
SMSC/Non-SMSC Register Sets (Rev.
01-11-07)
Page 23
SMSC LPC47M172
DATASHEET

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