參數(shù)資料
型號: HYB18H1G321AF
廠商: QIMONDA
英文描述: GDDR3 Graphics RAM 1-Gbit GDDR3 Graphics RAM
中文描述: GDDR3顯卡內(nèi)存1千兆位GDDR3顯卡內(nèi)存
文件頁數(shù): 22/48頁
文件大?。?/td> 1406K
代理商: HYB18H1G321AF
HYB18H1G321AF–10/11/14
1-Gbit GDDR3
Internet Data Sheet
Rev. 0.92, 2007-10
06122007-MW7D-3G3M
22
FIGURE 10
Extended Mode Register Bitmap for High-Speed Application
Notes
1. These settings are for debugging purposes only.
2. Default termination values at Power Up.
3. The ODT disable function disables all terminators on the
device.
4. If the user activates bits in the extended mode register in
an optional field, either the optional field is activated (if
option implemented in the device) or no action is taken by
the device (if option not implemented).
5. WR (write recovery time for auto precharge) in clock
cycles is calculated by dividing
t
WR
(in ns) and rounding up
to the next integer (WR[cycles] =
t
WR
[ns] /
t
CK
[ns]). The
mode register must be programmed to this value.
FIGURE 11
Extended Mode Register Set Timing
([WHQGHG0RGH5HJLVWHUIDVWYVG
'DWD=
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$
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$
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$
$
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$
$
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9
:5
5WW
:5
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5)8
$
:5
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&$=
0RGH
=4
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7HUPLQDWLRQ
=4
=4
=4
$
$
'//
(QDEOH
$
(QDEOH
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$
2Q
2II
$
2XWSXW'ULYHU
,PSHGDQFH
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$
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5)8
=4
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=4'HIDXOW
CLK#
CLK
Don't Care
PA
EMRS
NOP
A.C.
NOP
t
RP
t
MRD
Command
EMRS: Extended MRS command
PA: PREALL command
A.C.: Any command
NOP
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
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