4-1
4
4Programming Details
Introduction
This chapter contains details of several programming functions that are not
tied to any specific ASIC chip.
PCI Device Addressing
Each PCI device has an associated address line connected via a resistor to
its IDSEL pin for Configuration Space accesses. The following table
shows the IDSEL assignments for the PCI devices on the MTX.
Table 4-1. IDSEL Mapping for PCI Devices
Device
Number
Field
PCI
Address
Line
IDSEL Connection
0b0_0000 AD31 Raven PCI Host Bridge & MPIC ASIC
0b0_1011 AD11 PCI/ISA Bridge
0b0_1100 AD12 SCSI Device
0b0_1101 AD13 Unused
0b0_1110 AD14 Ethernet Device
0b0_1111 AD15 Unused
0b1_0000 AD16 PMC or 32-bit PCI Slot 1
0b1_0001 AD17 PMC or 32-bit PCI Slot 2
0b1_0010 AD18 32-bit or 64-bit PCI Slot 3
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