FW82801DB S L66K Intel, FW82801DB S L66K Datasheet - Page 200
![no-image](/images/manufacturer_photos/0/3/336/intel_sml.jpg)
FW82801DB S L66K
Manufacturer Part Number
FW82801DB S L66K
Description
Manufacturer
Intel
Datasheet
1.FW82801DB_S_L66K.pdf
(587 pages)
Specifications of FW82801DB S L66K
Lead Free Status / RoHS Status
Supplier Unconfirmed
- Current page: 200 of 587
- Download datasheet (7Mb)
Functional Description
5.17.6
5.17.6.1
200
USB EHCI Interrupts and Error Conditions
Section 4 of the EHCI specification goes into detail on the EHC interrupts and the error conditions
that cause them. All error conditions that the EHC detects can be reported through the EHCI
Interrupt status bits. Only ICH4-specific interrupt and error-reporting behavior is documented in
this section. The EHCI Interrupts Section must be read first, followed by this section of the
datasheet to fully comprehend the EHC interrupt and error-reporting functionality.
Aborts on USB EHCI-Initiated Memory Reads
If a read initiated by the EHC is aborted, the EHC treats it as a fatal host error. The following
actions are taken when this occurs:
•
•
•
•
•
•
The Host System Error status bit is set
The DMA engines are halted after completing up to one more transaction on the USB interface
If enabled (by the Host System Error Enable), an interrupt is generated
If the status is Master Abort, the Received Master Abort bit in configuration space is set
If the status is Target Abort, the Received Target Abort bit in configuration space is set
If enabled (by the SERR Enable bit in the function’s configuration space), the Signaled System
Error bit in configuration bit is set.
— Based on the EHC’s buffer sizes and buffer management policies, the Data Buffer Error
— Master Abort and Target Abort responses from hub interface on EHC-initiated read
— The ICH4 may assert the interrupts which are based on the interrupt threshold as soon as
— Since the ICH4 supports the 1024-element Frame List size, the Frame List Rollover
— The ICH4 delivers interrupts using PIRQ#[H].
— The ICH4 does not modify the CERR count on an Interrupt IN when the “Do Complete-
— For complete-split transactions in the Periodic list, the “Missed Microframe” bit does not
can never occur on the ICH4.
packets will be treated as Fatal Host Errors. The EHC halts when these conditions are
encountered.
the status for the last complete transaction in the interrupt interval has been posted in the
internal write buffers. The requirement in the EHCI Specification (that the status is
written to memory) is met internally, even though the write may not be seen on the hub
interface before the interrupt is asserted.
interrupt occurs every 1024 milliseconds.
Split” execution criteria are not met.
get set on a control-structure-fetch that fails the late-start test. If subsequent accesses to
that control structure do not fail the late-start test, then the “Missed Microframe” bit will
get set and written back.
Intel
®
82801DB ICH4 Datasheet
Related parts for FW82801DB S L66K
Image
Part Number
Description
Manufacturer
Datasheet
Request
R
![FW82801DB S L6DM](/images/manufacturer_photos/0/3/336/intel_tmb.jpg)
Part Number:
Description:
Manufacturer:
Intel
Datasheet:
![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: