Datasheet

28 Intel
®
815E Scalable Performance Board Development Kit Manual
Theory of Operation
3.4.7.2 32-bit/33-MHz PCI Connectors
Three industry standard 32-bit/33-MHz PCI connectors (PCI1, PCI2, and PCI3) are provided on
the evaluation board.
3.4.7.3 CNR Connectors
One CNR connector is included on the board. Intel
®
has not validated this feature.
3.4.7.4 V-Bus Connector
A V-BUS TV-out adapter can be installed in this connector (VL1), which has general video output
and S-Video out for display on a TV monitor. Intel has not validated this feature. Contact ABIT*
for more information.
3.4.8 Post Code Debugger
An on-board Post-Code Debugger is not implemented on the evaluation board. However, post code
debugging can be accomplished through the use of a port 080H expansion card.
3.4.9 Clock Generation
The clock synthesizer on the baseboard generates and distributes the clocks used by the entire
system.
3.4.9.1 System Clocks
The CK Intel
®
815E Chipset: 3 DIMM Clock Synthesizer is the primary source of clock generation
for most of the clocks on the baseboard. The following clock groups are found on the Intel
®
815E
Scalable Performance Board Development Kit:
CPU 66 MHz/100 MHz/133 MHz
PCI 33 MHz
SDRAM 100 MHz/133 MHz
3V66 66 MHz (3.3 V)
USB 48 MHz
DOT 48 MHz
REF 14.31818 MHz
APIC 33 MHz