HYB18H512321BF-08/10 QIMONDA [Qimonda AG], HYB18H512321BF-08/10 Datasheet - Page 19

• Manufacturer Part Number: HYB18H512321BF-08/10
• Description: 512-Mbit GDDR3 Graphics RAM
• Manufacturer: QIMONDA [Qimonda AG]

There are two bitmaps for the Extended Mode Register. One bitmap shown in
applications. The other bitmap shown in
distinguish different numbers in supported Write Recovery clock cycles. The mid-range bit map provides WR cycles from 4 to
11.The high-speed bitmap supports WR from 7 to 13.
Rev. 1.1, 2007-09
05292007-WAU2-UU95
BA2
0
BA1
0
BA0
1
A11
0
A10
0
1
Figure 8
A10
Extended Mode Register Bitmap for Mid-Range-Speed Application
V
Vendor ID
Off
On
A9
RFU
Extended Mode Register Bitmap for High-Speed Application
is more focused on the high-range-speed application. Both bitmaps
A8
WR
A7
A7
0
0
0
0
1
1
1
1
19
A6
A5
0
1
0
0
1
1
0
0
1
1
DLL
A6
Enable
Enable
Disable
DLL
A4
0
1
0
1
0
1
0
1
A5
WR
WR
11
10
4
5
6
7
8
9
A4
A3
Rtt
A3
Figure 7
0
0
1
1
A2
A2
0
1
0
1
A1
0
0
1
1
ODT disabled
A1
Termination
(Default)
Data Z
ZQ / 4
ZQ / 2
RFU
A0
0
1
0
1
is supposed to support Mid-Speed
A0
Output Driver
2)
Impedance
Autocal
35
45
40
Internet Data Sheet
HYB18H512321BF
512-Mbit GDDR3
FIGURE 7
FIGURE 8