FW82801EB Intel, FW82801EB Datasheet - Page 197
![no-image](/images/manufacturer_photos/0/3/336/intel_sml.jpg)
FW82801EB
Manufacturer Part Number
FW82801EB
Description
Manufacturer
Intel
Datasheet
1.FW82801EB.pdf
(671 pages)
Specifications of FW82801EB
Lead Free Status / RoHS Status
Not Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
FW82801EB
Manufacturer:
INTEL
Quantity:
20 000
Company:
Part Number:
FW82801EB SL73Z
Manufacturer:
INTEL
Quantity:
238
Part Number:
FW82801EB(SL73Z)
Manufacturer:
INTEL
Quantity:
20 000
- Current page: 197 of 671
- Download datasheet (8Mb)
5.19.1.3
Intel
®
Table 86. Queue Head Block
Table 87. Queue Head Link Pointer
Table 88. Queue Element Link Pointer
82801EB ICH5 / 82801ER ICH5R Datasheet
Queue Head (QH)
Queue heads are special structures used to support the requirements of Control, Bulk, and Interrupt
transfers. Since these TDs are not automatically retired after each use, their maintenance
requirements can be reduced by putting them into a queue. Queue Heads must be aligned on a
16-byte boundary, and the elements are shown in
1
00–03
04–07
Bytes
31:4
31:4
Bit
3:2
Bit
3:2
0
1
0
Queue Head Link Pointer (QHLP). This field contains the address of the next data object to be
processed in the horizontal list and corresponds to memory address signals [31:4], respectively.
Reserved. These bits must be written as 0s.
QH/TD Select (Q). This bit indicates to the hardware whether the item referenced by the link
pointer is another TD or a QH.
0 = TD
1 = QH
Terminate (T). This bit indicates to the Intel
are active TDs in this queue, they are the last to be executed in this frame.
0 = Pointer is valid (points to a QH or TD).
1 = Last QH (pointer is invalid).
Queue Element Link Pointer (QELP). This field contains the address of the next TD or QH to be
processed in this queue and corresponds to memory address signals [31:4], respectively.
Reserved.
QH/TD Select (Q). This bit indicates to the hardware whether the item referenced by the link
pointer is another TD or a QH. For entries in a queue, this bit is typically set to 0.
0 = TD
1 = QH
Terminate (T). This bit indicates to the Intel
When HCD has new queue entries it overwrites this value with a new TD pointer to the queue
entry.
0 = Pointer is valid.
1 = Terminate (No valid queue entries).
Queue Head Link Pointer
Queue Element Link Pointer
Description
Description
Description
Table
®
®
ICH5 that this is the last QH in the schedule. If there
ICH5 that there are no valid TDs in this queue.
86.
Functional Description
Attributes
R/W
RO
197
Related parts for FW82801EB
Image
Part Number
Description
Manufacturer
Datasheet
Request
R
![RJ80535VC600512](/images/manufacturer_photos/0/3/337/intel_corporation_tmb.jpg)
Part Number:
Description:
Microprocessor: Intel Celeron M Processor 320 and Ultra Low Voltage Intel Celeron M Processor at 600MHz
Manufacturer:
Intel Corporation
![82550GY](/images/manufacturer_photos/0/3/337/intel_corporation_tmb.jpg)
Part Number:
Description:
Intel 82550 Fast Ethernet Multifunction PCI/CardBus Controller
Manufacturer:
Intel Corporation
Datasheet:
![DA28F320J5-120](/images/manufacturer_photos/0/3/337/intel_corporation_tmb.jpg)
Part Number:
Description:
Intel StrataFlash memory 32 Mbit. Access speed 120 ns
Manufacturer:
Intel Corporation
Datasheet:
![E28F320J5-120](/images/manufacturer_photos/0/3/337/intel_corporation_tmb.jpg)
Part Number:
Description:
Intel StrataFlash memory 32 Mbit. Access speed 120 ns
Manufacturer:
Intel Corporation
Datasheet:
![G28F640J5-150](/images/manufacturer_photos/0/3/337/intel_corporation_tmb.jpg)
Part Number:
Description:
Intel StrataFlash memory 64 Mbit. Access speed 150 ns
Manufacturer:
Intel Corporation
Datasheet:
![E28F320J5-100](/images/manufacturer_photos/0/3/337/intel_corporation_tmb.jpg)
Part Number:
Description:
Intel StrataFlash memory 32 Mbit. Access speed 100 ns
Manufacturer:
Intel Corporation
Datasheet:
![DA28F640J5A-150](/images/manufacturer_photos/0/3/337/intel_corporation_tmb.jpg)
Part Number:
Description:
DA28F640J5A-1505 Volt Intel StrataFlash Memory
Manufacturer:
Intel Corporation
Datasheet:
![DA28F320J5A-120](/images/manufacturer_photos/0/3/337/intel_corporation_tmb.jpg)
Part Number:
Description:
5 Volt Intel StrataFlash?? Memory
Manufacturer:
Intel Corporation
Datasheet:
![E28F320J5A-120](/images/manufacturer_photos/0/3/337/intel_corporation_tmb.jpg)
Part Number:
Description:
5 Volt Intel StrataFlash?? Memory
Manufacturer:
Intel Corporation
![NHE6300ESB](/images/manufacturer_photos/0/3/337/intel_corporation_tmb.jpg)
Part Number:
Description:
Intel 6300ESB I/O Controller Hub
Manufacturer:
Intel Corporation
Datasheet:
![NH82801DB](/images/manufacturer_photos/0/3/337/intel_corporation_tmb.jpg)
Part Number:
Description:
Intel 82801DB I/O Controller Hub (ICH4), Pb-Free SLI
Manufacturer:
Intel Corporation
Datasheet:
![FW82801FB](/images/manufacturer_photos/0/3/337/intel_corporation_tmb.jpg)
Part Number:
Description:
Intel 82801FB I/O Controller Hub (ICH6)
Manufacturer:
Intel Corporation
Datasheet:
![28F640J3A120](/images/manufacturer_photos/0/3/337/intel_corporation_tmb.jpg)
Part Number:
Description:
Intel Strataflash Memory28F128J3 28F640J3 28F320J3
Manufacturer:
Intel Corporation
Datasheet:
![FW82439TX](/images/manufacturer_photos/0/3/337/intel_corporation_tmb.jpg)
Part Number:
Description:
Controllers, Intel 430TX PCIset: 82439TX System Controller (MTXC)
Manufacturer:
Intel Corporation