NHE6300ESB S L7XJ Intel, NHE6300ESB S L7XJ Datasheet - Page 615
NHE6300ESB S L7XJ
Manufacturer Part Number
NHE6300ESB S L7XJ
Description
Manufacturer
Intel
Datasheet
1.NHE6300ESB_S_L7XJ.pdf
(848 pages)
Specifications of NHE6300ESB S L7XJ
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16—Intel
Watchdog Timer (WDT) (D29:F4)
16.1
November 2007
Order Number: 300641-004US
Note: The WDT device (Dev 29:F4) cannot be hidden by using bit 12 of the D31:F0
®
6300ESB ICH
Product Features
The Watchdog Timer (WDT) supports the following features and functions:
FUNC_DIS Register. The WDT will always be present as a PCI device in PCI Config
Space.
•
•
•
Selectable prescaler – approximately 1 MHz and approximately 1 KHz
33 MHz clock (30 ns clock ticks)
Multiple modes: WDT and free-running
— Free-running mode:
— WDT Mode:
• One stage timer.
• Toggles WDT_OUT# after programmable time.
• Two stage timer:
• Timer may be disabled (default state) or locked (hard reset required to disable WDT)
• WDT automatic reload of preload value when WDT reload sequence is performed
1. First stage generates IRQ and SMI interrupt after programmable time.
2. Second stage drives WDT_OUT# low or inverts the previous value.
*Used only after first timeout occurs.
*Status bit preserved in RTC well for possible error detection and correction.
*Drives WDT_TOUT# when OUTPUT is enabled.
Intel
®
6300ESB I/O Controller Hub
16
615
DS
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