Table 54 Reset Status Description and Priorites
I/O Address | Reset | Reset | Description |
457h | Signal | Priority1 |
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D7 | Main Power (+5V) | 2 | Main input power to cpuModule (+5V) |
D6 | CPU Core Power | 3 | CPU core powers supply |
D5 | 3 | Power supplies that are not for standby | |
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| power |
D4 | Memory Power | 3 | Power to onboard memory banks |
D3 | Standby Power | 1 | Standby power supplies |
D2 | Reserved | - | Reserved |
D1 | PCI Reset | 4 | PCI bus reset signal |
D0 | Utility Reset | - | Utiliy connector push button reset2 |
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1.When a reset is asserted, all resets with a higher reset priority will also be asserted. For example, if the standby power reset is asserted, all other resets will also be asserted.
2.The BIOS allows the user to change the function of the utiliy connector’s push button reset. If the push button is not configured as a reset, this bit will always read a 0 (asserted) when the reset button has been pushed.
72 CMX58886CX cpuModule |