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82G33 Datasheet(PDF) 142 Page - Intel Corporation

Part # 82G33
Description  Graphics and Memory Controller Hub
PDF  437 Pages
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Manufacturer  INTEL [Intel Corporation]
Direct Link  http://www.intel.com
Logo INTEL - Intel Corporation

82G33 Datasheet(HTML) 142 Page - Intel Corporation

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DRAM Controller Registers (D0:F0)
142
Datasheet
Bit
Access &
Default
Description
15:14
RW
00b
DRAM Refresh Low Watermark (REFLOWWM): When the refresh
count exceeds this level, a refresh request is launched to the
scheduler and the dref_low flag is set.
00 = 1
01 = 2
10 = 3
11 = 4
13:0
RW
001100001
10000b
Refresh Counter Time Out Value (REFTIMEOUT): Program this
field with a value that will provide 7.8 us at the memory clock
frequency. At various memory clock frequencies this results in the
following values:
667 MHz -> 1450 hex
5.2.15
C0ODTCTRL—Channel 0 ODT Control
B/D/F/Type:
0/0/0/MCHBAR
Address Offset:
29C–29Fh
Default Value:
00000000h
Access:
RO, RW
Size:
32 bits
This register provides ODT controls.
Bit
Access &
Default
Description
31:12
RO
00000h
Reserved
11:8
RW
0000b
Reserved
7:4
RW
0000b
Reserved
3:0
RW
0000b
Reserved



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