AMD Geode LX 800@0.9W - Manual (Page 177)

AMD Geode™ LX Processors Data Book 177
CPU Core Register Descriptions 33234H
5.5.2.82 L1 Data TLB Entry MSR (L1DTLB_ENTRY_MSR)
MSR Address
0000189Ah
Type R/W
Reset Value 00000000_00000000h
L1DTLB_ENTRY_MSR Register Map
63 62 61 60 59 58 57 56 55 54 53 52 51 50 49 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 32
LINADDR RSVD
WP
WA
_
W
S
WC
31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
PHYSADDR RSVD
DIR
T
Y
AC
C
CD
WT
_B
R
US WR
VA
L
ID
L1DTLB_ENTRY_MSR Bit Descriptions
Bit Name Description
63:44 LINADDR Linear Address. Address [32:12].
43:35 RSVD (RO) Reserved (Read Only).
34 WP Write-protect Flag.
0: Page can be written.
1: Page is write-protected.
33 WA_WS Write-allocate/Write-serialize Flag. If the page is cacheable, a 1 indicates the write-
allocate flag. If the page is non-cacheable, a 1 indicates the write-serialize flag.
32 WC Write-combine Flag. When this page is marked as non-cacheable, a 1indicates that
writes may be combined before being sent to the bus.
31:12 PHYSADDR Physical Address. Address [32:12]
11:7 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.