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參數(shù)資料
| 型號(hào)： | V91F564U24QBFW-F5 |
| 廠商： | PROMOS TECHNOLOGIES INC |
| 元件分類： | DRAM |
| 英文描述： | 64M X 72 DDR DRAM MODULE, 0.45 ns, DMA240 |
| 封裝： | ROHS COMPLIANT, FBDIMM-240 |
| 文件頁數(shù)： | 22/22頁 |
| 文件大小： | 196K |
| 代理商： | V91F564U24QBFW-F5 |
V91F564U24QB Rev 1.0 July 2006
9
V91F564U24QB
ProMOS TECHNOLOGIES
one half the peak theoretical throughput of a single DRAM channel. For example, when using DDR2 533
DRAMs, the peak theoretical bandwidth of the Southbound command and data connection is 2.133GB/sec.
The total peak theoretical throughput of a single FBDIMM channel is defined as the sum of peak theoretical
throughput of the Northbound data connection and the South command and data connection. When the
frame rate matches the DRAM command clock, this is equal to 1.5 times the peak theoretical throughput of
a single DRAM channel. Foe example, when using DDR2 533 DRAMs, the peak theoretical throughput of a
single DDR2-533 channel would be 4.267 GB/sec., while the peak theoretical throughput of the entire FB-
DIMM 533 channel would be 6.4GB/sec.
Hot-add
The FBDIMM channel does not provide a mechanism to automatically detect and report the addition of a
new FBDIMM south of the currently active last FBDIMM. It is assumed the system will be notified through
some means of the addition of one or more new FBDIMMs so that specific commands can be sent to the
host controller to initialize the newly added FBDIMM and perform a hot-add reset to bring them into the chan-
nel timing domain. It should be noted that the power to the FBDIMM socket must be removed before a hot-
add FBDIMM is inserted or removed. Applying or removing the power to a FBDIMM socket is a system plat-
form function.
Hot-remove
In order to accomplish the removal of the FBDIMM, the host must preform a fast reset sequence targeted at
the last FBDIMM that will be retained on the channel. The fast reset re-establishes the appropriate last FB-
DIMM so that the southbound transmission outputs of the last active FBDIMM and the southbound and
northbound outputs of the FBDIMMs beyond the last active FBDIMM are disabled. Once the appropriate out-
puts are disbaled, the system can coordinate the procedure to remove power in preparation for physical re-
moval of the FBDIMM if needed. Note that the power to the FBDIMM socket must be removed before a hot-
add FBDIMM is inserted or removed. Applying or removing the power to a FBDIMM socket is a system plat-
form function.
Hot-replace
Hot replace of FBDIMM is accomplished through combining the hot-remove and hotadd processes.
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