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Download Digital Equipment Corporation AlphaPC64 User guide
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Figure 8–2 PCI Configuration Registers Device ID = 0002h Vendor ID = 1011h : 00001000 Status Command : 00001004 Class Code N/S Don't Care Rev ID : 00001008 N/S : 0000100C Latency Timer I/O Base Address (CBIO) : 00001010 Memory Base Address (CBMA) : 00001014 Reserved : 00001018 Reserved : 00001028 Reserved : 0000102C N/S (=Not Supported) : 00001030 Reserved : 00001034 Reserved : 00001038 X X Int Pin Int Line Driver Area (CFDA) : 0000103C : 00001040 Reserved Reserved : 00001044 to 000010FC ML013282 8.1.2 Ethernet Controller CSRs The Ethernet controller has 16 CSRs that can be accessed by the PCI host bridge. The address field in Table 8–1 reflects the offset from the CSR base address (CBIO,CBMA). The CSRs are located in PCI I/O or memory space. The CSRs are quadword-aligned and can only be accessed using longword instructions. See the DECchip 21040-AA specifications for more details. 8–4 PCI bus
