82G33 datasheet(126/437 Pages) INTEL

126 / 437 page

DRAM Controller Registers (D0:F0)

126

Datasheet

Bit

Access &

Default

Description

DDR3 Disable (DDR3D):

0 = Capable of supporting DDR3 SDRAM (82G33 GMCH and 82P35

MCH only)

1 = Not Capable of supporting DDR3 SDRAM

37:34

0000b

Reserved

33:31

000b

DDR Frequency Capability (DDRFC): This field controls which values

may be written to the Memory Frequency Select field 6:4 of the

Clocking Configuration registers (MCHBAR Offset C00h). Any attempt to

write an unsupported value will be ignored.

000 = (G)MCH capable of "All" memory frequencies

001 = Reserved

010 = Reserved

011 = (G)MCH capable of up to DDR2/DDR3 1333

100 = (G)MCH capable of up to DDR2/DDR3 1067

101 = (G)MCH capable of up to DDR2/DDR3 800

110 = (G)MCH capable of up to DDR2/DDR3 667

NOTE: DDR3 is only supported on the 82G33 GMCH and 82P35 MCH

components.

30:28

000b

FSB Frequency Capability (FSBFC): This field controls which values

are allowed in the PSB Frequency Select Field 2:0 of the Clocking

Configuration Register. These values are determined by the BSEL[2:0]

frequency straps. Any unsupported strap values will render the (G)MCH

System Memory Interface inoperable.

000 = (G)MCH capable of "All" Memory Frequencies

001 = Reserved

010 = Reserved

011 = (G)MCH capable of up to PSB 1333

100 = (G)MCH capable of up to PSB 1067

101 = (G)MCH capable of up to PSB 800

110 = (G)MCH capable of up to PSB 667

27:24

CAPID Version (CAPIDV): This field has the value 0001b to identify

the first revision of the CAPID register definition.

23:16

0bh

CAPID Length (CAPIDL): This field has the value 0bh to indicate the

structure length (11 bytes).

15:8

00h

Next Capability Pointer (NCP): This field is hardwired to 00h

indicating the end of the capabilities linked list.

7:0

09h

Capability Identifier (CAP_ID): This field has the value 1001b to

identify the CAP_ID assigned by the PCI SIG for vendor dependent

capability pointers.

82G33 Datasheet(PDF) 126 Page - Intel Corporation

82G33 Datasheet(HTML) 126 Page - Intel Corporation

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 ...More

Datasheet Download

Link URL