Product specifications

Design Guide - VT82C694X Apollo Pro133 with VT82C686A
Preliminary Revision 0.5, November 19, 1999 i List of Tables
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LIST OF TABLES
Table 2-1. Different Board Size Lists for Slot-1 System ................................................................................................................ 9
Table 2-2. Different Board Size Lists for Socket-370 System....................................................................................................... 12
Table 2-3. High Frequency and Bulk Decoupling Capacitor Distribution around Socket-370 ..................................................... 19
Table 2-4. Power-Up Configuration for VT82C694X ................................................................................................................. 28
Table 2-5. Power-Up Configuration for VT82C686A ................................................................................................................. 28
Table 2-6. Recommended Trace Width and Spacing................................................................................................................... 29
Table 2-7. Apollo Pro133A Clock Synthesizer Requirements...................................................................................................... 30
Table 2-8. Apollo Pro133A System Clock Combinations ............................................................................................................ 33
Table 2-9. Host Control Signals to South Bridge........................................................................................................................ 44
Table 2-10. Memory Subsystem Signals..................................................................................................................................... 46
Table 2-11. VT82C694X AGP 4X Signal Groups .......................................................................................................................52
Table 2-12 Universal Serial Bus (USB) Signals .........................................................................................................................59
Table 2-13. Signal Description of AC'97 Link and Game/MIDI Ports......................................................................................... 61
Table 2-14. Resume Events Supported in Different Power States................................................................................................ 71
Table 4-1. Absolute Maximum Ratings....................................................................................................................................... 75
Table 4-2. Recommended Operating Ranges.............................................................................................................................. 75
Table 4-3. DC Characteristics................................................................................................................................................... 76
Table 4-4. Maximum Power Dissipation.................................................................................................................................... 76
Table 5-1. VT82C694X North Bridge Connectivity..................................................................................................................... 78
Table 5-2. VT82C686A South Bridge Connectivity..................................................................................................................... 81
Table 5-3. Recommended Trace Width and Spacing................................................................................................................... 90
Table 5-4. Maximum Accumulated Trace Length ....................................................................................................................... 94
Table B-1. Decoupling Capacitor List ..................................................................................................................................... 101
Table B-2. AC-Coupling Capacitors for Audio Input Signals.................................................................................................... 101
Table B-3. AC-Coupling Capacitors for Audio Input Signals.................................................................................................... 102
Table B-4. Signal Groups Associated with Their Audio Ground Plane...................................................................................... 104
Table B-5. Routing Guidelines for Signal Nets......................................................................................................................... 107
Table B-6. Routing Guidelines for Power and Ground Nets ..................................................................................................... 107