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AMD Geode LX [email protected] User Manual

Page 181

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AMD Geode™ LX Processors Data Book

181

CPU Core Register Descriptions

33234H

7

RSVD (RO)

Reserved (Read Only).

6

DIRTY

Dirty Flag. A 1 indicates that the page has been written to.

5

ACC

Accessed Flag. A 1 indicates an entry in the TLB.

4

CD

Cache Disable Flag. A 1 indicates that the page is uncacheable.

3

WT_BR

Write-Through/Write Burst Flag. When the page is cacheable, a 1 indicates that the
page is write-through. When the page is non-cacheable, a 1 indicates that the page
allows write bursting.

2

US

User Access Privileges.

0: Supervisor.
1: User.

1

WR

Writable Flag.

0: Page can not be written.
1: Page can be written.

0

VALID

Valid Bit. A 1 indicates that the entry in the TLB is valid.

If SEL bits in L2TLB_INDEX MSR = 1x (MSR 0000189Ch[17:16] = 1x)

63:44

LINADDR

Linear Address. Address [32:22].

53:32

RSVD (RO)

Reserved (Read Only).

31:12

PHYSADDR

Physical Address. Address [32:12]

11:9

RSVD (RO)

Reserved (Read Only).

8

GLOBAL

Global Page Flag. A 1 indicates a global page.

7

4MPTE

4M PTE Flag.

0: DTE access.
1: 4M PTE access.

6

DIRTY

Dirty Flag. A 1 indicates that the page has been written to.

5

ACC

Accessed Flag. A 1 indicates an entry in the TLB.

4

CD

Cache Disable Flag. A 1 indicates that the page is uncacheable.

3

WT

Write-through Flag. A 1 indicates that the page is write-through.

2

US

User Access Privileges.

0: Supervisor.
1: User.

1

WR

Writable Flag.

0: Page can not be written.
1: Page can be written.

0

VALID

Valid Bit. A 1 indicates that the entry in the TLB is valid.

L2TLB_ENTRY_MSR Bit Descriptions (Continued)

Bit

Name

Description

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