450NX Datasheet, PDF (16/248 Pages) Intel Corporation – Intel 450NX PCIset

2. Signal Descriptions
Component-Specific Support Signals
CRESET#
LVTTL O
ERR[1:0]#
LVTTL I/OD
HCLKIN
2.5V I
INTREQ#
LVTTL O
TOTAL SIGNALS
PWRGD
PWRGDB
RESET#
SMIACT#
2.2.1.2 PXB Signal List
PCI Bus Interface (2 per PXB: A,B)
P(A,B)AD[31:0]
PCI I/O P(A,B)PAR
P(A,B)C/BE[3:0]#
PCI I/O P(A,B)PERR#
P(A,B)CLKFB
LVTTL I
P(A,B)REQ[5:0]#
P(A,B)CLK
LVTTL O P(A,B)RST#
P(A,B)DEVSEL#
PCI I/O P(A,B)SERR#
P(A,B)FRAME#
PCI I/O P(A,B)STOP#
P(A,B)GNT[5:0]#
PCI O P(A,B)TRDY#
P(A,B)IRDY#
PCI I/O P(A,B)XARB#
P(A,B)LOCK#
PCI I/O
PCI Bus Interface / Non-Duplicated (one set per PXB)
ACK64#
PCI I/O PHLDA#
MODE64#
PCI I
REQ64#
PHOLD#
PCI I
WSC#
Expander Interface (one per PXB)
XADS#
AGTL+ I/O XHSTBP#
XBE[1:0]#
AGTL+ I/O XIB
XBLK#
AGTL+ I
XPAR#
XCLK
CMOS I
XRST#
XD[15:0]#
AGTL+ I/O XXRTS#
XHRTS#
AGTL+ I
XXSTBN#
XHSTBN#
AGTL+ I
XXSTBP#
Common Support Signals
CRES[1:0]
Analog I
TMS
TCK
2.5V I
TRST#
TDI
2.5V I
VCCA (3)
TDO
2.5V OD VREF (2)
Component-Specific Support Signals
INTRQ(A,B)#
PCI OD PIIXOK#
P(A,B)MON[1:0]#
LVTTL I/OD PWRGD
TOTAL SIGNALS
9
LVTTL I
LVTTL O
AGTL+ I/O
LVTTL O
348
2 x 61
PCI I/O
PCI I/O
PCI I
PCI O
PCI OD
PCI I/O
PCI I/O
PCI I
6
PCI O
PCI I/O
PCI O
30
AGTL+ I
AGTL+ O
AGTL+ I/O
AGTL+ I
AGTL+ O
AGTL+ O
AGTL+ O
12
2.5V I
2.5V I
Analog I
Analog I
8
LVTTL I
LVTTL I
177
2-4
Intel® 450NX PCIset