876784 Intel, 876784 Datasheet - Page 207
![no-image](/images/manufacturer_photos/0/3/336/intel_sml.jpg)
876784
Manufacturer Part Number
876784
Description
Manufacturer
Intel
Datasheet
1.876784.pdf
(848 pages)
Specifications of 876784
Lead Free Status / RoHS Status
Compliant
- Current page: 207 of 848
- Download datasheet (7Mb)
Functional Description
5.20
Table 5-48. UHCI vs. EHCI
5.20.1
5.20.1.1
5.20.1.2
Intel
®
ICH7 Family Datasheet
USB EHCI Host Controller (D29:F7)
The ICH7 contains an Enhanced Host Controller Interface (EHCI) host controller which
supports up to eight USB 2.0 high-speed root ports. USB 2.0 allows data transfers up to
480 Mb/s using the same pins as the eight USB full-speed/low-speed ports. The ICH7
contains port-routing logic that determines whether a USB port is controlled by one of
the UHCI controllers or by the EHCI controller. USB 2.0 based Debug Port is also
implemented in the ICH7.
A summary of the key architectural differences between the USB UHCI host controllers
and the EHCI host controller are shown in
EHC Initialization
The following descriptions step through the expected ICH7 Enhanced Host Controller
(EHC) initialization sequence in chronological order, beginning with a complete power
cycle in which the suspend well and core well have been off.
BIOS Initialization
BIOS performs a number of platform customization steps after the core well has
powered up. Contact your Intel Field Representative for additional ICH7 BIOS
information.
Driver Initialization
See Chapter 4 of the Enhanced Host Controller Interface Specification for Universal
Serial Bus, Revision 1.0.
Accessible by
Memory Data Structure
Differential Signaling Voltage
Ports per Controller
Parameter
I/O space
Single linked list
3.3 V
2
USB UHCI
Table
Memory Space
Separated in to Periodic and Asynchronous
lists
400 mV
8
5-48.
USB EHCI
207
Related parts for 876784
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