AMD-K6 AMD [Advanced Micro Devices], AMD-K6 Datasheet - Page 57

• Manufacturer Part Number: AMD-K6
• Description: AMD-K6 Processor
• Manufacturer: AMD [Advanced Micro Devices]

20695H/0—March 1998
Figure 32. Write Handling Control Register (WHCR)
Memory
Management
Registers
Table 6.
Chapter 3
Global Descriptor Table Register
Interrupt Descriptor Table Register
Local Descriptor Table Register
Task Register
Symbol
Note: Hardware RESET initializes this MSR to all zeros.
63
WCDE
WAELIM
WAE15M
Register Name
Memory Management Registers
Always program to 0
Write Allocate Enable Limit
Write Allocate Enable 15-to-16-Mbyte 0
Reserved
Description
Write Handling Control Register (WHCR). The Write Handling Control
Register (WHCR) is a MSR that contains three fields — the
WCDE bit, Write Allocate Enable Limit (WAELIM) field, and
the Write Allocate Enable 15-to-16-Mbyte (WAE15M) bit.
Figure 32 shows the format of WHCR. See “Write Allocate” on
page 177 for more information.
Th e A M D -K 6 p ro c e s s o r c o n t ro l s s e g m e n t e d m e m o ry
management with the registers listed in Table 6. Figure 33 on
page 40 shows the formats of these registers.
Contains a pointer to the base of the Global Descriptor Table
Contains a pointer to the base of the Interrupt Descriptor Table
Contains a pointer to the Local Descriptor Table of the current task
Contains a pointer to the Task State Segment of the current task
Bits
8
7–1
Software Environment
Function
9
0
8
AMD-K6
7
®
WAELIM
Processor Data Sheet
1
W
M
A
1
5
E
0
39