NVRAM Updates

74

Boot Device Order

74

System Recovery. .

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

75

Loading Default BIOS Settings

75

Booting to the Fail Safe Boot ROM (FSBR)

75

Basic Interrupt Information for Programmers

76

What happens when an interrupt occurs?

76

How long does it take to respond to an interrupt?

76

Interrupt Request Lines

76

Intel 8259 Programmable Interrupt Controller

77

PCI Interrupts. . .

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

77

Writing an Interrupt Service Routine (ISR)

77

Sample Code . . .

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

77

Appendix A

Hardware Reference

 

Jumper Settings and Locations

80

Onboard PCI Devices

83

Physical Dimensions

84

Appendix B

Troubleshooting

 

Common Problems and Solutions

86

Troubleshooting a PC/104-Plus System

87

How to Obtain Technical Support

88

Appendix C IDAN™ Dimensions and Pinout

 

IDAN Dimensions and Connectors

90

External I/O Connections

91

Appendix D

Additional Information

 

Application Notes

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

99

Drivers and Example Programs

99

Interrupt Programming

99

Serial Port Programming

99

PC/104 and PC/104-PlusSpecifications

99

Appendix E

Limited Warranty

 

viii CMX58886CX cpuModule

BDM-610000050 Rev A

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IBM CMX58886CX user manual System Recovery, Application Notes