Chassis Plans JXT6966, Hardware Technical Reference

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PCI Express Reference JXT6966 / JXTS6966 Technical Reference
CHASSIS PLANS 2-6
PCI Express Signals Overview
The following table provides a description of the SHB slot signal groups on the PCI Express connectors.
Type Signals Description Connector Source
Global GND, +5V, +3.3V, +12V
PSON#
PWRGD, PWRBT#, 5Vaux
TDI
TDO
SMCLK, SMDAT
IPMB_CL, IPMB_DA
CFG[0:3]
SHB_RST#
RSVD
RSVD-G
WAKE# Power
Optional ATX support
Optional ATX support
Optional JTAG support
Optional JTAG support
Optional SMBus support
Optional IPMB support
PCIe configuration straps
Optional reset line
Reserved
Reserved ground
Signal for link reactivation
A
A and B
A
A
A
C
A
A
A and B
A
A
Backplane
SHB
Backplane
Backplane
SHB
SHB & Backplane
SHB & Backplane
Backplane
SHB
Backplane
Backplane
PCIe a_PETp[0:15]
a_PETn[0:15]
a_PERp[0:15]
a_PERn[0:15]
b_PETp[0:3]
b_PETn[0:3]
b_PERp[0:3]
b_PERn[0:3]
REFCLK[0:7]+, REFCLK[0:7]-
PERST# Point-to-point from SHB slot through
the x16 PCIe connector (A) to the
target device(s)
Point-to-point from SHB slot through
the x8 PCIe connector (B) to the
target device(s)
Clock synchronization of PCIe
expansion slots
PCIe fundamental reset A and B
A
A
A
SHB & Backplane
SHB & Backplane
SHB
SHB & Backplane
PCI(-X)
(Not
Available) AD[0:31], FRAME#, IRDY#,
TRDY#, STOP#, LOCK#,
DEVSEL#, PERR#, SERR#,
C/BE[0:3], SDONE, SBO#, PAR
GNT[0:3], REQ[0:3], CLKA, CLKB,
CLKC, CLKD, CLKFO, CLKFI
INTA#, INTB#, INTC#, INTD#
M66EN, PCIXCAP
PCI_PRST#
PME# Bussed on SHB slot and expansion
slots
Point-to-point from SHB slot to each
expansion slot
Bussed (rotating) on SHB slot and
expansion slots
Bussed on SHB slot and expansion
slots
PCI(-X) present on backplane detect
Optional PCI wake-up event bussed
on SHB and backplane expansion
slots D
D
D
D
D
A
SHB & Backplane
SHB & Backplane
Backplane
Backplane
Backplane
Backplane
Misc. I/O USB[0:3]P, USB[0:3]N,
USBOC[0:3]# Optional point-to-point from SHB
Connector C to a destination USB
device C SHB & Backplane
SATA ESATATX(4:5)P,
ESATATX(4:5)N,
ESATARX(4:5)P,
ESATARX(4:5)N, Optional point-to-point from SHB
Connector C to a destination SATA
device C SHB & Backplane
Ethernet a_MDI(0:1)p,
a_MDI(0:1)n Optional point-to-point from SHB
Connector C to a destination Ethernet
device C SHB & Backplane