EPOX EP-P80P+, User Manual, Page: 6 / 23

Diagnostic Card Usage EP-P80P+
Page 7
Chapter 2 Chapter 2
Chapter 2 Chapter 2
Chapter 2
Diagnostic Card Usage Diagnostic Card Usage
Diagnostic Card Usage Diagnostic Card Usage
Diagnostic Card Usage
System Voltages Detected
These LED’s represent the voltages they represent being present
on the PCI bus. The diagnostic card is capable of det5,
+3.3, -12,
+12V and PCIRST
from the PCI bus.
PCI Bus C/BE[3::0] # Description
Note: A binary ‘1’ below would represent the diagnostic card’s
corresponding LED being enabled (on), while ‘0’ would be the
LED disabled (off).
BEQ#: PCI Bus
3 2 1 0 Command Type
0 0 0 0 Interrupt Acknowledge
0 0 0 1 Special Cycle
0 0 1 0 I/O Read
0 0 1 1 I/O Write
0 1 0 0 Reserved
0 1 0 1 Reserved
0 1 1 0 Memory Read
0 1 1 1 Memory Write
1 0 0 0 Reserved
1 0 0 1 Reserved
1 0 1 0 Configuration Read
1 0 1 1 Configuration Write
1 1 0 0 Memory Read Multiple
1 1 0 1 Dual Address Cycle
1 1 1 0 Memory Read Line
1 1 1 1 Memory Write and Invalidate
For more information about the PCI Bus C/BE signal please refer to PCI
Local Bus Specification Revision 2.0 or Intel datasheets.