NH82801FBM S L89K Intel, NH82801FBM S L89K Datasheet - Page 143

• Manufacturer Part Number: NH82801FBM S L89K
• Manufacturer: Intel

Specifications of NH82801FBM S L89K

• Lead Free Status / RoHS Status: Compliant

5.11.4
5.11.5
Intel
Table 5-19. Data Frame Format
®
I/O Controller Hub 6 (ICH6) Family Datasheet
Specific Interrupts Not Supported via SERIRQ
There are three interrupts seen through the serial stream that are not supported by the ICH6. These
interrupts are generated internally, and are not sharable with other devices within the system. These
interrupts are:
The ICH6 ignores the state of these interrupts in the serial stream, and does not adjust their level
based on the level seen in the serial stream.
Data Frame Format
Table 5-19
ICH6 is ANDed with the PCI input signal. This way, the interrupt can be signaled via both the PCI
interrupt input signal and via the SERIRQ signal (they are shared).
•
•
•
Frame #
Data
IRQ0. Heartbeat interrupt generated off of the internal 8254 counter 0.
IRQ8#. RTC interrupt can only be generated internally.
IRQ13. Floating point error interrupt generated off of the processor assertion of FERR#.
10
11
12
13
14
15
16
17
18
19
20
21
1
2
3
4
5
6
7
8
9
shows the format of the data frames. For the PCI interrupts (A
PCI INTC#
PCI INTD#
PCI INTA#
PCI INTB#
IOCHCK#
Interrupt
IRQ10
IRQ12
IRQ13
IRQ14
IRQ15
IRQ11
IRQ0
IRQ1
SMI#
IRQ3
IRQ4
IRQ5
IRQ6
IRQ7
IRQ8
IRQ9
Clocks Past
Start Frame
11
14
17
20
23
26
29
32
35
38
41
44
47
50
53
56
59
62
2
5
8
Ignored. IRQ0 can only be generated via the internal 8524
Causes SMI# if low. Will set the SERIRQ_SMI_STS bit.
Ignored. IRQ8# can only be generated internally.
Same as ISA IOCHCK# going active.
Drive PIRQB#
Drive PIRQC#
Drive PIRQD#
Ignored. IRQ13 can only be generated from FERR#
Not attached to PATA or SATA logic
Not attached to PATA or SATA logic
Drive PIRQA#
Comment
Functional Description
–
D), the output from the
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