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參數(shù)資料
| 型號： | HYB18H512321BF |
| 廠商： | QIMONDA |
| 英文描述： | 512-Mbit GDDR3 Graphics RAM |
| 中文描述： | 512兆GDDR3顯卡內存 |
| 文件頁數(shù)： | 21/43頁 |
| 文件大?。?/td> | 1344K |
| 代理商： | HYB18H512321BF |
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HYB18H512321BF
512-Mbit GDDR3
Internet Data Sheet
Rev. 1.1, 2007-09
05292007-WAU2-UU95
21
4.2.5
Vendor Code and Revision Identification
The Manufacturer Vendor Code is selected by issuing an Extended Mode Register Set command with bit A10 set to 1 and bits
A0-A9 and A11 set to the desired value. When the Vendor Code function is enabled the GDDR3 DRAM will provide the
Qimonda vendor code on DQ[3:0] and the revision identification on DQ[7:4]. The code will be driven onto the DQ bus after
tRIDon following the EMRS command that sets A10 to 1. The Vendor Code and Revision ID will be driven on DQ[7:0] until a
new EMRS command is issued with A10 set back to 0. After
t
RDoff
following the second EMRS command, the data bus is driven
back to HIGH. This second EMRS command must be issued before initiating any subsequent operation. Violating this
requirement will result in unspecified operation.
TABLE 10
Revision ID and Vendor Code
Note: Please refer to Revision Release Note for Revision ID value.
FIGURE 10
Timing of Vendor Code and Revision ID Generation on DQ[7:0]
Revision Identification
Qimonda Vendor Code
DQ[7:4]
0011
DQ[3:0]
0010
CLK#
CLK
N/D
N/D
Com.
N/D
N/D
N/D
N/D
0
1
2
3
4
5
6
7
8
Add
A[9:0],
A11
9
10
N/D
N/D
RDQS
DQ[7:0]
A10
N/D
Add
EMRS
EMRS
tRIDon
Vendor Code and Revision ID
tRIDoff
EMRS: Extended Mode Register Set Command
Add: Address
N/D: NOP or Deselect
Don't Care
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| HYB18H512321BF-08/10 | 制造商:QIMONDA 制造商全稱:QIMONDA 功能描述:512-Mbit GDDR3 Graphics RAM |
| HYB18H512321BF-11/12/14 | 制造商:QIMONDA 制造商全稱:QIMONDA 功能描述:512-Mbit GDDR3 Graphics RAM |
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| HYB18L128160BF | 制造商:QIMONDA 制造商全稱:QIMONDA 功能描述:DRAMs for Mobile Applications 128-Mbit Mobile-RAM |
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