82801FB Datasheet, PDF (85/786 Pages) Intel Corporation – Intel I/O Controller Hub 6 (ICH6) Family

Pin States
Table 3-4. Power Plane and States for Output and I/O Signals for Mobile Configurations
(Sheet 1 of 4)
Signal Name
Power
Plane
During
Immediately
PLTRST#⁶ / after PLTRST#⁶ /
RSMRST#⁷
RSMRST#⁷
C3/C4
S1
S3_COLD13 S4/S5
PCI Express*
PETp[1], PETn[1]
PETp[2], PETn[2]
PETp[3], PETn[3]
PETp[4], PETn[4]
Vcc3_3
High
High¹²
PCI Bus
Defined Defined
Off
Off
AD[31:0]
Vcc3_3
Low
Undefined
Defined Defined
Off
Off
C/BE[3:0]#
Vcc3_3
Low
Undefined
Defined Defined
Off
Off
CLKRUN#
Vcc3_3
Low
Low
Defined
Off
Off
DEVSEL#
Vcc3_3
High-Z
High-Z
High-Z
High-Z
Off
Off
FRAME#
Vcc3_3
High-Z
High-Z
High-Z
High-Z
Off
Off
GNT[4:0]#
Vcc3_3
High with
Internal Pull-
ups
High
High
High
Off
Off
GNT[5]#
Vcc3_3
High-Z with
internal Pull-
up
High
High
High
Off
Off
GNT[6]#
Vcc3_3
High-Z with
internal Pull-
up
High
High
High
Off
Off
IRDY#, TRDY#
Vcc3_3
High-Z
High-Z
High-Z
High-Z
Off
Off
PAR
Vcc3_3
Low
Undefined
Defined Defined
Off
Off
PCIRST#
VccSus3_3
Low
High
High
High
Low
Low
PERR#
Vcc3_3
High-Z
High-Z
High-Z
High-Z
Off
Off
PLOCK#
Vcc3_3
High-Z
High-Z
High-Z
High-Z
Off
Off
STOP#
Vcc3_3
High-Z
High-Z
High-Z
High-Z
Off
Off
LPC Interface
LAD[3:0] /
FWH[3:0]
LFRAME# /
FWH[4]
Vcc3_3
Vcc3_3
High
High
High
High
High
High
Off
Off
High
High
Off
Off
Intel^® I/O Controller Hub 6 (ICH6) Family Datasheet
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