NH82801FBM S L89K Intel, NH82801FBM S L89K Datasheet - Page 552
NH82801FBM S L89K
Manufacturer Part Number
NH82801FBM S L89K
Description
Manufacturer
Intel
Datasheet
1.NH82801FBM_S_L89K.pdf
(786 pages)
Specifications of NH82801FBM S L89K
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EHCI Controller Registers (D29:F7)
14.2.2.3
552
USB2.0_INTR—USB 2.0 Interrupt Enable Register
Offset:
Default Value:
This register enables and disables reporting of the corresponding interrupt to the software. When a
bit is set and the corresponding interrupt is active, an interrupt is generated to the host. Interrupt
sources that are disabled in this register still appear in the USB2.0_STS Register to allow the
software to poll for events. Each interrupt enable bit description indicates whether it is dependent
on the interrupt threshold mechanism (see Section 4 of the EHCI specification), or not.
31:6
Bit
5
4
3
2
1
0
Reserved. These bits are reserved and should be 0 when writing this register.
Interrupt on Async Advance Enable — R/W.
0 = Disable.
1 = Enable. When this bit is a 1, and the Interrupt on Async Advance bit (D29:F7:CAPLENGTH +
Host System Error Enable — R/W.
0 = Disable.
1 = Enable. When this bit is a 1, and the Host System Error Status bit (D29:F7:CAPLENGTH + 24h,
Frame List Rollover Enable — R/W.
0 = Disable.
1 = Enable. When this bit is a 1, and the Frame List Rollover bit (D29:F7:CAPLENGTH + 24h, bit 3)
Port Change Interrupt Enable — R/W.
0 = Disable.
1 = Enable. When this bit is a 1, and the Port Change Detect bit (D29:F7:CAPLENGTH + 24h, bit 2)
USB Error Interrupt Enable — R/W.
0 = Disable.
1 = Enable. When this bit is a 1, and the USBERRINT bit (D29:F7:CAPLENGTH + 24h, bit 1) in the
USB Interrupt Enable — R/W.
0 = Disable.
1 = Enable. When this bit is a 1, and the USBINT bit (D29:F7:CAPLENGTH + 24h, bit 0) in the
24h, bit 5) in the USB2.0_STS register is a 1, the host controller will issue an interrupt at the
next interrupt threshold. The interrupt is acknowledged by software clearing the Interrupt on
Async Advance bit.
bit 4) in the USB2.0_STS register is a 1, the host controller will issue an interrupt. The interrupt
is acknowledged by software clearing the Host System Error bit.
in the USB2.0_STS register is a 1, the host controller will issue an interrupt. The interrupt is
acknowledged by software clearing the Frame List Rollover bit.
in the USB2.0_STS register is a 1, the host controller will issue an interrupt. The interrupt is
acknowledged by software clearing the Port Change Detect bit.
USB2.0_STS register is a 1, the host controller will issue an interrupt at the next interrupt
threshold. The interrupt is acknowledged by software by clearing the USBERRINT bit in the
USB2.0_STS register.
USB2.0_STS register is a 1, the host controller will issue an interrupt at the next interrupt
threshold. The interrupt is acknowledged by software by clearing the USBINT bit in the
USB2.0_STS register.
MEM_BASE + 28–2Bh
00000000h
Intel
Description
®
I/O Controller Hub 6 (ICH6) Family Datasheet
Attribute:
Size:
R/W
32 bits
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