876784 Intel, 876784 Datasheet - Page 470

• Manufacturer Part Number: 876784
• Manufacturer: Intel

Specifications of 876784

• Lead Free Status / RoHS Status: Compliant

11.1.1
11.1.2
11.1.3
470
VID—Vendor Identification Register
(USB—D29:F0/F1/F2/F3)
Address Offset:
Default Value:
DID—Device Identification Register
(USB—D29:F0/F1/F2/F3)
Address Offset:
Default Value:
PCICMD—PCI Command Register (USB—D29:F0/F1/F2/
F3)
Address Offset:
Default Value:
15:11
15:0
15:0
Bit
Bit
Bit
10
9
8
7
6
5
4
3
2
1
0
Device ID — RO. This is a 16-bit value assigned to the Intel
controllers. Refer to the Intel
for the value of the Device ID Register.
Reserved
Interrupt Disable — R/W.
0 = Enable. The function is able to generate its interrupt to the interrupt controller.
1 = Disable. The function is not capable of generating interrupts.
NOTE: The corresponding Interrupt Status bit is not affected by the interrupt enable.
Fast Back to Back Enable (FBE) — RO. Hardwired to 0.
SERR# Enable — RO. Reserved as 0.
Wait Cycle Control (WCC) — RO. Hardwired to 0.
Parity Error Response (PER) — RO. Hardwired to 0.
VGA Palette Snoop (VPS) — RO. Hardwired to 0.
Postable Memory Write Enable (PMWE) — RO. Hardwired to 0.
Special Cycle Enable (SCE) — RO. Hardwired to 0.
Bus Master Enable (BME) — R/W.
0 = Disable
1 = Enable. Intel
Memory Space Enable (MSE) — RO. Hardwired to 0.
I/O Space Enable (IOSE) — R/W. This bit controls access to the I/O space registers.
0 = Disable
1 = Enable accesses to the USB I/O registers. The Base Address register for USB should
Vendor ID — RO. This is a 16-bit value assigned to Intel
be programmed before this bit is set.
00h
8086h
02h
UHCI #1 = See bit description
UHCI #2 = See bit description
UHCI #3 = See bit description
UHCI #4 = See bit description
04h
0000h
®
–
–
–
ICH7 can act as a master on the PCI bus for USB transfers.
01h
03h
05h
®
I/O Controller Hub 7 (ICH7) Family Specification Update
Description
Description
Description
Attribute:
Size:
Attribute:
Size:
Attribute:
Size:
Intel
®
RO
16 bits
R/W, RO
16 bits
RO
16 bits
ICH7 USB universal host
UHCI Controllers Registers
®
ICH7 Family Datasheet