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MVME5100 Single Board Computer Programmer's Reference Guide

MVME5100 Single Board Computer Programmer's Reference Guide

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1<br />

Product Data and Memory Maps<br />

<strong>Board</strong> Last Reset Register<br />

This register is used to retain the source of the most recent reset.<br />

REG <strong>Board</strong> Last Reset Register - Offset 80F8h<br />

BIT RD0 RD1 RD2 RD3 RD4 RD5 RD6 RD7<br />

FIELD<br />

SWHRST<br />

CMDRST<br />

OPER R R R R R R R R<br />

RESET x x x x x x x x<br />

REQUIRED<br />

OR<br />

OPTIONAL<br />

X X O O O O O O<br />

PWRON Power-On Reset. If set, a power-on reset has occurred or an<br />

undervoltage reset has occurred on 3.3V or 5V.<br />

FPBTN Front Panel Push Button Reset. If set, a front panel push button<br />

reset has occurred.<br />

WDT2 Watchdog Timer Level 2 Reset. If set, a level 2 Watchdog timer<br />

reset has occurred.<br />

CPCIRST CompactPCI Reset. If set, a CompactPCI RST# reset has<br />

occurred. Not applicable for the <strong>MVME5100</strong>.<br />

CMDRST CompactPCI Command Reset. If set, a software reset command<br />

has been issued to the 21554 bridge from the CompactPCI bus.<br />

Not applicable for <strong>MVME5100</strong>.<br />

SWHRST Software Hard Reset. If set, a software initiated hard reset has<br />

occurred via the PBC Port 92 Fast Reset bit of the SA Test Mode<br />

register.<br />

1-32 <strong>Computer</strong> Group Literature Center Web Site<br />

CPCIRST<br />

WDT2<br />

FPBTN<br />

PWRON

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