450NX Datasheet, PDF (91/248 Pages) Intel Corporation – Intel 450NX PCIset

5.5 Connectors
The Intel 450NX PCIset supports the same request/grant and third-party control signals
originally provided by the Intel 450GX PCIset. Theses signals are used to exchange priority
ownership of the bus between the TPA and the Intel 450NX PCIset. The Intel 450NX PCIset
makes no assumptions about the relative priorities between the Intel 450NX PCIset and the
TPA, and will grant priority ownership at the next natural transaction boundary. The Intel
450NX PCIset also makes no assumptions about the frequency of TPA requests or the
duration of TPA bus ownership; it is the responsibility of the TPA to ensure that its use of the
system bus is commensurate with its intended purpose and expected system performance.
5.5
Connectors
Connectors are permitted only for the memory cards and between the MIOC and PXBs.
Between MIOC and PXB, some degree of “stretch” distance is possible, with specific distance
dependent on the design and medium chosen. Connectors are specifically not permitted
between the MIOC and the system bus.
Intel® 450NX PCIset
5-3