876784 Intel, 876784 Datasheet - Page 481
![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: 481 of 848
- Download datasheet (7Mb)
UHCI Controllers Registers
Intel
®
ICH7 Family Datasheet
Bit
3
2
1
0
Enter Global Suspend Mode (EGSM) — R/W.
0 = Software resets this bit to 0 to come out of Global Suspend mode. Software writes
1 = Host controller enters the Global Suspend mode. No USB transactions occur during
Global Reset (GRESET) — R/W.
0 = This bit is reset by the software after a minimum of 10 ms has elapsed as specified
1 = Global Reset. The host controller sends the global reset signal on the USB and then
Host Controller Reset (HCRESET) — R/W. The effects of HCRESET on Hub registers
are slightly different from Chip Hardware Reset and Global USB Reset. The HCRESET
affects bits [8,3:0] of the Port Status and Control Register (PORTSC) of each port.
HCRESET resets the state machines of the host controller including the Connect/
Disconnect state machine (one for each port). When the Connect/Disconnect state
machine is reset, the output that signals connect/disconnect are negated to 0,
effectively signaling a disconnect, even if a device is attached to the port. This virtual
disconnect causes the port to be disabled. This disconnect and disabling of the port
causes bit 1 (connect status change) and bit 3 (port enable/disable change) of the
PORTSC (D29:F0/F1/F2/F3:BASE + 10h) to get set. The disconnect also causes bit 8 of
PORTSC to reset. About 64 bit times after HCRESET goes to 0, the connect and low-
speed detect will take place, and bits 0 and 8 of the PORTSC will change accordingly.
0 = Reset by the host controller when the reset process is complete.
1 = Reset. When this bit is set, the host controller module resets its internal timers,
Run/Stop (RS) — R/W. When set to 1, the ICH7 proceeds with execution of the
schedule. The ICH7 continues execution as long as this bit is set. When this bit is
cleared, the ICH7 completes the current transaction on the USB and then halts. The HC
Halted bit in the status register indicates when the host controller has finished the
transaction and has entered the stopped state. The host controller clears this bit when
the following fatal errors occur: consistency check failure, PCI Bus errors.
0 = Stop
1 = Run
NOTE: This bit should only be cleared if there are no active Transaction Descriptors in
this bit to 0 at the same time that Force Global Resume (bit 4) is written to 0 or
after writing bit 4 to 0.
this time. The Host controller is able to receive resume signals from USB and
interrupt the system. Software must ensure that the Run/Stop bit (bit 0) is cleared
prior to setting this bit.
in Chapter 7 of the USB Specification.
resets all its logic, including the internal hub registers. The hub registers are reset
to their power on state. Chip Hardware Reset has the same effect as Global Reset
(bit 2), except that the host controller does not send the Global Reset on USB.
counters, state machines, etc. to their initial value. Any transaction currently in
progress on USB is immediately terminated.
the executable schedule or software will reset the host controller prior to setting
this bit again.
Description
481
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