Figure 2-1. PCH Interface Signals Block Diagram (not all signals are on all SKUs)
AD[31:0]
C/BE[3:0]#
DEVSEL#
FRAME#
IRDY#
TRDY#
STOP#
PAR
PERR#
REQ0#
REQ1#/GPIO50
REQ2#/GPIO52
REQ3#/GPIO54
GNT0#
GNT1#/GPIO51
GNT2#/GPIO53
GNT3#/GPIO55
SERR#
PME#
CLKIN_PCILOOPBACK
PCIRST#
PLOCK#
PCI
Interface
Intel
®
Flexible
Display
Interface
Power
Mgnt.
Interrupt
Interface
PMSYNCH
RCIN#
A20GATE
THRMPTRIP#
PROCPWRGD
Processor
Interface
USB
SERIRQ
PIRQ[D:A]#
PIRQ[H:E]#/GPIO[5:2]
USB[13:0][P,N]
OC0#/GPIO59; OC1#/GPIO40
OC2#/GPIO41; OC3#/GPIO42
OC4#/GPIO43; OC5#/GPIO9
OC6#/GPIO10; OC7#/GPIO14
USBRBIAS, USBRBIAS#
RTCX1
RTCX2
CLKIN_DMI_[P,N];CLKIN_DMI2_[P,N]
CLKIN_SATA_[P,N]/CKSSCD_[P,N]
CLKIN_DOT96[P,N]
XTAL25_IN;REF14CLKIN
PCIECLKRQ0#/GPIO73;PCIECLKRQ1#/GPIO18
PCIECLKRQ2#/GPIO20;PCIECLKRQ3#/GPIO25
PCIECLKRQ4#/GPIO26;PCIECLKRQ5#/GPIO44
PCIECLKRQ6#/GPIO45;PCIECLKRQ7#/GPIO46
PEG_A_CLKRQ#/GPIO47;PEG_B_CLKRQ#/GPIO56
XCLK_RCOMP
RTC
Clock
Inputs
Misc.
Signals
INTVRMEN, DSWVRMEN
SPKR
SRTCRST#; RTCRST#
INIT3_3V#
TPn
GPIO35
GPIO24/PROC_MISSING
General
Purpose
I/O
GPIO[72,57,32,28,27,15,8]
PECI
Direct
Media
Interface
LPC /
FWH
Interface
SMBus
Interface
Intel
®
High
Definition
Audio
System
Mgnt.
LAD[3:0]/FWH[3:0]
LFRAME#/FWH4
LDRQ0#; LDRQ1#/GPIO23
Serial ATA
Interface
PCI Express*
Interface
SPI
SPI_CS0#; SPI_CS1#
SPI_MISO
SPI_MOSI
SPI_CLK
JTAG
Controller
Link
Fan
Speed
Control
Digital
Display
Interface
Clock
Outputs
CLKOUT_DP_[P,N]
CLKOUT_DMI_[P,N]
XTAL25_OUT
CLKOUT_PEG_A_[P,N];CLKOUT_PEG_B_[P,N]
CLKOUT_PCIE[7:0]_[P,N]
CLKOUT_ITPXDP_[P,N]
CLKOUT_PCI [4:0]
CLKOUTFLEX0/GPIO64;CLKOUTFLEX1/GPIO65
CLKOUTFLEX2/GPIO66;CLKOUTFLEX3/GPIO67
Analog
Display
LVDS
FDI_RX[P,N][7:4]
FDI_RX[P,N[[3:0]
FDI_FSYNC[0:1];FDI_LSYNC[0:1];FDI_INIT
CL_CLK1 ; CL_DATA1
CL_RST1#
PET[p,n][8:1]
PER[p,n][8:1]
SATA[5:0]TX[P,N]
SATA[5:0]RX[P,N]
SATAICOMPO, SATA3COMPO
SATAICOMPI, SATA3COMPI
SATA3RBIAS
SATALED#
SATA0GP/GPIO21
SATA1GP/GPIO19
SATA2GP/GPIO36
SATA3GP/GPIO37
SATA4GP/GPIO16
SATA5GP/GPIO49/TEMP_ALERT#
SCLOCK/GPIO22, SLOAD/GPIO38
SDATAOUT0/GPIO39, SDATAOUT1/GPIO48
SUSWARN#/ SUS_PWR_DN_ACK/GPIO30
DPWROK
SYS_RESET#
RSMRST#
SLP_S3#
SLP_S4#
SLP_S5#/GPIO63
SLP_A#
CLKRUN#/GPIO32
PWROK
AWROK
PWRBTN#
RI#
WAK E#
SUS_STAT#/GPIO61
SUSCLK/GPIO62
BATLOW#/GPIO72
PLTRST#
BMBUSY#/GPIO0
STP_PCI#/GPIO34
ACPRESENT/GPIO31
DRAMPWROK
LAN_PHY_PWR_CTRL/GPIO12
SLP_LAN#/GPIO29
SUSACK#
HDA_RST#
HDA_SYNC
HDA_BCLK
HDA_SDO
HDA_SDI N[3:0]
HDA_DOCK_EN#;HDA_DOCK_RST#
DMI[3:0]TX[P,N]
DMI[3:0]RX[P,N]
DMI_ZCOMP
DMI_IRCOMP
SMBDATA; SMBCLK
SMBALERT#/GPIO11
INTRUDER#;
SML[1:0]DATA;SML[1:0]CLK
SML0ALERT#/GPIO60
SML1ALERT#/PCHHOT#/GPIO74
CRT_RED;CRT_GREEN;CRT_BLUE
DAC_IREF
CRT_HSYNC;CRT_VSYNC
CRT_DDC_CLK;CRT_DDC_DATA
CRT_IRTN
LVDS[A:B]_DATA[3:0]
LVDS[A:B]_DATA#[3:0]
LVDS[A:B]_CLK;LVDS[A:B]_CLK#
LVD_VREFH;LVD_VREFL; LVD_VBG
LVD_IBG
L_DDC_CLK;L_DDC_DATA
L_VDDEN;L_BLKTEN;L_BKLTCTL
DDPB_[3:0][P,N]
DDPC_[3:0][P,N]
DDPD_[3:0][P,N]
DDP[B:D]_AUX[P,N]
DDP[B:D]_HPD
SDVO_CTRLCLK;SDVO_CTRLDATA
DDPC_CTRLCLK;DDPC_CTRLDATA
DDPD_CTRLCLK;DDPD_CTRLDATA
SDVO_INT[P,N]
SDVO_TVCLKIN[P,N]
SDVO_STALL[P,N]
JTAGTCK
JTAGTMS
JTAGTDI
JTAGTDO
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