Signal Description
Table 2-12. Intel® 6700PXH 64-bit PCI Hub Signals, Interfaces and Power Planes (Sheet 4 of 4)
Intel® 6700PXH
64-bit PCI Hub
Signal
Hot Plug Muxed
Signal (Parallel
Mode, 1-2 Slots)
No. of
Signals
Operating
Voltage
Interface
Type
Notes
TDI
N/A
1
1
JTAG
I
O
I
3.3V
3.3V
3.3V
3.3V
1.5V
Test interface
TDO
TMS
TRST#
VCC
N/A
N/A
N/A
N/A
JTAG
JTAG
JTAG
Test interface
Test interface
Test interface
Supply voltage
1
1
I
18
1.5V core
voltage
N/A
VCC15
VCC33
N/A
N/A
17
31
1.5V I/O voltage
N/A
N/A
1.5V
3.3V
Supply voltage
Supply voltage
3.3V PCI/PCI-X
voltage
VCCAEXP
VCCAPCI[2:0]
VCCBGEXP
VCCEXP
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
1
3
PCI Express*
PCI
N/A
I
1.5V
1.5V
Analog voltage
Analog voltage
Analog voltage
Supply voltage
Analog reference
Ground
1
PCI Express*
PCI Express*
PCI
N/A
N/A
I
2.5V
9
1.5V
VREFPCI
VSS
1
VCC/2 ±3%
0V
143
1
Ground
N/A
N/A
N/A
VSSAEXP
VSSBGEXP
Ground
0V
Analog ground
Analog ground
1
Ground
0V
2.10.2
Power Planes
Table 2-13. Intel® 6700PXH 64-bit PCI Hub Platform Power Planes
Plane
Signal
Description
Core Voltage
1.5V
VCC
Provides the core power for the Intel® 6700PXH 64-bit PCI Hub.
Provides Voltage for the PCI Express* Interface.
Provides 1.5V required for 1.5V I/O Interface.
Provides 3.3V for the PCI and PCI-X Mode 1 operations.
Needed for Bandgap Analog Filter.
PCI Express* Voltage
1.5V
VCCEXP
VCC15
VCC33
VCC25
1.5V I/O Voltage
1.5V
PCI/PCI-X Mode 1 Voltage
3.3V
Bandgap Voltage
2.5V
34
Intel® 6700PXH 64-bit PCI Hub Datasheet
INTEL [ INTEL ]
