Chapter 1
13
IRQ Assignment Map
ISA Interrupt
Description
INTR Processor
interrupt
NMI
NMI processor
IRQ1
Keyboard interrupt
IRQ3
Serial port A or B interrupt from SIO device, user-configurable
IRQ4
Serial port A or B interrupt from SIO device, user-configurable
IRQ5
IRQ6
Floppy disk
IRQ7
IRQ8_L
Active low RTC interrupt
IRQ9
IRQ10
IRQ11
IRQ12
Mouse interrupt
IRQ14
Compatibility IDE interrupt from primary channel IDE devices 0 and1
IRQ15
SMI*
System Management Interrupt. General purpose indicator sourced by the
ICH3-S and BMC to the processors.
SCI*
System Management Interrupt. Used by system to change sleep states and
other system level type functions.
Summary of Contents for Altos R700 Series
Page 9: ...2 Chapter 1 System Block Diagram ...
Page 10: ...Chapter 1 3 System Board Layout ...
Page 26: ...Chapter 1 19 ...
Page 45: ...Chapter 2 38 ...
Page 46: ...39 Chapter 2 ...
Page 55: ...Chapter 2 48 ...
Page 56: ...49 Chapter 2 ...
Page 60: ...53 Chapter 2 ...
Page 64: ...57 Chapter 2 ...
Page 65: ...Chapter 2 58 ...
Page 68: ...61 Chapter 3 Disassembly FlowChart ...
Page 84: ...77 Chapter 4 ...
Page 86: ...79 Chapter 5 ...
Page 98: ...91 Appendix A ...
Page 113: ...107 Appendix C ...
Page 114: ...107 Appendix C ...