AMD AMD-K6-2/500AFX Data Sheet - Page 65
Directory Entry 4-Kbyte Table PDE, Directory Entry 4-Mbyte
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21850J/0-February 2000 Preliminary Information AMD-K6®-2 Processor Data Sheet 31 Page Table Base Address Symbol Description Bits AVL Available to Software 11-9 Reserved 8 PS Page Size 7 Reserved 6 A Accessed 5 PCD Page Cache Disable 4 PWT Page Writethrough 3 U/S User/Supervisor 2 W/R Write/Read 1 P Present (valid) 0 12 11 10 9 8 7 6 5 4 3 2 1 0 A P P UW V 0 A CW / / P L DT SR Figure 41. Page Directory Entry 4-Kbyte Page Table (PDE) 31 22 21 Physical Page Base Address Reserved Symbol Description Bits AVL Available to Software 11-9 Reserved 8 PS Page Size 7 Reserved 6 A Accessed 5 PCD Page Cache Disable 4 PWT Page Writethrough 3 U/S User/Supervisor 2 W/R Write/Read 1 P Present (valid) 0 12 11 10 9 8 7 6 5 4 3 2 1 0 A P P UW V 1 A CW / / P L DT SR Figure 42. Page Directory Entry 4-Mbyte Page Table (PDE) Chapter 3 Software Environment 45