HYB18H256321BF QIMONDA [Qimonda AG], HYB18H256321BF Datasheet - Page 17

• Manufacturer Part Number: HYB18H256321BF
• Description: 256-Mbit GDDR3 Graphics RAM GDDR3 Graphics RAM
• Manufacturer: QIMONDA [Qimonda AG]

Internet Data Sheet
HYB18H256321BF
256-Mbit GDDR3
FIGURE 7
Extended Mode Register Bitmap for Mid-Range-Speed Application
There are two bitmaps for the Extended Mode Register. One bitmap shown in
Figure 7
is supposed to support Mid-Speed
applications. The other bitmap shown in
Figure 8
is more focused on the high-range-speed application. Both bitmaps
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. 0.80, 2007-09
17
09132007-07EM-7OYI