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vi Intel® 460GX Chipset System Software Developer’s Manual
7.2 AGP Traffic.........................................................................................................7-6
7.2.1 Addresses Used by the Graphics Card.................................................7-6
7.2.2 Traffic Priority ........................................................................................7-7
7.2.3 Coherency, Translation and Types of AGP Traffic................................7-7
7.2.4 Ordering Rules......................................................................................7-8
7.2.5 Processor Locks and AGP Traffic .........................................................7-8
7.2.6 Address Alignment and Transfer Sizes.................................................7-9
7.2.7 PCI Semantics Traffic ...........................................................................7-9
7.3 Bandwidth ........................................................................................................7-13
7.3.1 Inbound Read Prefetching ..................................................................7-14
7.4 Latency.............................................................................................................7-14
7.5 GXB Address Map ...........................................................................................7-14
8 WXB Hot-Plug.................................................................................................................8-1
8.1 IHPC Configuration Registers............................................................................8-1
8.1.1 Page Number List for the IHPC PCI Register Descriptions...................8-3
8.1.2 VID: Vendor Identification Register .......................................................8-3
8.1.3 DID: Device Identification Register........................................................8-3
8.1.4 PCICMD: PCI Command Register ........................................................8-4
8.1.5 PCISTS: PCI Status Register................................................................8-5
8.1.6 RID: Revision Identification Register.....................................................8-5
8.1.7 CLASS: Class Register.........................................................................8-6
8.1.8 CLS: Cache Line Size ...........................................................................8-6
8.1.9 MLT: Master Latency Timer Register....................................................8-6
8.1.10 HDR: Header Register ..........................................................................8-6
8.1.11 Base Address........................................................................................8-7
8.1.12 SVID: Subsystem Vendor Identification ................................................8-7
8.1.13 SID: Subsystem ID................................................................................8-7
8.1.14 Interrupt Line .........................................................................................8-7
8.1.15 Interrupt Pin...........................................................................................8-8
8.1.16 Hot-Plug Slot Identifier ..........................................................................8-8
8.1.17 Miscellaneous Hot-Plug Configuration ..................................................8-8
8.1.18 Hot-Plug Features .................................................................................8-9
8.1.19 Switch Change SERR Status................................................................8-9
8.1.20 Power Fault SERR Status.....................................................................8-9
8.1.21 Arbiter SERR Status ...........................................................................8-10
8.1.22 Memory Access Index.........................................................................8-10
8.1.23 Memory Mapped Register Access Port...............................................8-10
8.2 IHPC Memory Mapped Registers ....................................................................8-10
8.2.1 Page Number List for IHPC Memory Mapped Register Descriptions..8-12
8.2.2 Slot Enable..........................................................................................8-12
8.2.3 Hot-Plug Miscellaneous ......................................................................8-13
8.2.4 LED Control.........................................................................................8-13
8.2.5 Hot-Plug Interrupt Input and Clear ......................................................8-14
8.2.6 Hot-Plug Interrupt Mask ......................................................................8-15
8.2.7 Serial Input Byte Data .........................................................................8-16
8.2.8 Serial Input Byte Pointer .....................................................................8-17
8.2.9 General Purpose Output .....................................................................8-17
8.2.10 Hot-Plug Non-interrupt Inputs .............................................................8-17
8.2.11 Hot-Plug Slot Identifier ........................................................................8-17
8.2.12 Hot-Plug Switch Interrupt Redirect Enable..........................................8-18
8.2.13 Slot Power Control ..............................................................................8-18