Product specifications

VT8235 V-Link South Bridge
Revision 1.22 October 24, 2002 -iv- Table Of Contents
LIST OF FIGURES
FIGURE 1. PC SYSTEM CONFIGURATION USING THE VT8235.........................................................................................5
FIGURE 2. VT8235 BALL DIAGRAM (TOP VIEW) ..................................................................................................................6
FIGURE 3. POWER MANAGEMENT SUBSYSTEM BLOCK DIAGRAM.........................................................................132
FIGURE 4. SYSTEM BLOCK DIAGRAM USING THE VT8754 NORTH BRIDGE ..........................................................134
FIGURE 5. MECHANICAL SPECIFICATIONS – 487 PIN BALL GRID ARRAY PACKAGE ........................................139
LIST OF TABLES
TABLE 1. VT8235 PIN LIST (NUMERICAL ORDER)..................................................................................................................................7
TABLE 2. VT8235 PIN LIST (ALPHABETICAL ORDER) ............................................................................................................................8
TABLE 3. PIN DESCRIPTIONS.....................................................................................................................................................9
TABLE 4. MEMORY MAPPED REGISTERS............................................................................................................................21
TABLE 5. FUNCTION SUMMARY.............................................................................................................................................21
TABLE 6. SYSTEM I/O MAP.......................................................................................................................................................21
TABLE 7. REGISTERS .................................................................................................................................................................22
TABLE 8. KEYBOARD CONTROLLER COMMAND CODES ..............................................................................................38
TABLE 9. CMOS REGISTER SUMMARY.................................................................................................................................41
TABLE 10. APIC FIXED IRQ ROUTING...................................................................................................................................64
TABLE 11. PNP IRQ ROUTING TABLE....................................................................................................................................66