Intel MB440LX manual Ports and Connectors, Signal States, 185

I/O Ports and Connectors 9

Signal States

In all tables in this chapter, active-low signal names have an “_L” symbol following the name; for example, P_REQ_SLOT0_L. Active-high signal names do not have a “_L” suffix.

Server System Board

The system board contains both PCI and ISA I/O systems with several embedded devices for video, network, and disk control. The board also provides

∙server management/monitoring hardware support

∙interrupt control (I/O APIC and standard PC)

∙a primary PCI bus segment (PCI-0) with four expansion connectors and two embedded devices

∙an ISA bus segment with three expansion connectors (one physically shared with PCI-0)

∙a National Semiconductor Super I/O chip providing all PC-compatible I/O and Xbus interfaces

M440LX Server System Product Guide 185