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PCI Bus 0 Local Bus Devices
http://www.motorola.com/computer/literature 2-15
2
Figure 2-1. PCI Bus 1 Local Bus PMC Expansion Slots
PCI Bus 0 Local Bus Devices
The MV64360 PCI Bus 0 local bus contains the Tsi148 ASIC and PCI6520
PMCSpan bridge.
Tsi148 ASIC
The VMEbus interface is provided by the Tsi148 ASIC. Tempe is a PCI-X
bus to VMEbus interface chip. While Tsi148 has many of the same features
as the VMEchip2 and Universe, it includes new features and
enhancements. Therefore, Tsi148 is not register compatible with the
VMEchip2 or Universe chips. See the Tsi148 User’s Manual from Tundra
Semiconductor listed in Appendix A, Related Documentation, for further
details.
PCI6520 PMCSpan Bridge
The PMCSpan interface is provided by the PCI6520. PCI6520 is a PCI-X-
to-PCI-X transparent bridge to interface between PMCspan bus and the
local PCI0 bus. This part operates asynchronously between primary/local
PMC Slot 0 PMC Slot 1
INTA# INTB# INTC# INTD# INTA# INTB# INTC# INTD#
MV64360
GPP[16] GPP[17] GPP[18] GPP[19]