Default Configurations
A
IMCR
E0
BSP
INTEL486™
CPU 1
NMI INTR RESET
AP2
INTEL486™
CPU 3
NMI INTR RESET
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REG. |
| 82489DX APIC | INTA | 82489DX APIC |
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MARK | LINTIN0 | LINTIN1 | TRAP | LINTIN0 | LINTIN1 | TRAP |
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NMI |
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INTR |
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RESET |
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ICC BUS |
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I/O BUS |
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NMI |
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IRQ1 |
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| 0 |
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| 1 |
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B |
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| 2 |
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| 3 |
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8254 TIMER |
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| 4 |
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| 4 |
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| 5 |
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| 6 |
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| I/O |
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| 7 |
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IRQ8# |
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| 7 | 82489DX |
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| 9 |
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| 10 |
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| 11 |
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| 11 |
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IRQ13 |
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C |
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EISA DMA CHAINING |
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| GLUE | ||
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FROM BSP |
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FERR# | FERR |
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IGNNE# |
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SAMPLING |
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| 32 | MASTER | INTR | ||
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| 4 | 8259A PIC |
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ABFULL | ABFULL |
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(PS/2 MOUSE) SAMPLING |
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| INTA | |||
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D |
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EDGE/LEVEL TRIGGER |
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POLARITY CONTROL |
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| 10 |
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| 11 |
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| SLAVE |
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IRQx |
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| 4 | 8259A PIC |
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| LITMx |
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| 7 |
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SHADED AREAS:
A: OPTIONAL IF VIRTUAL WIRE MODE IS IMPLEMENTED
B,C: MAY NOT BE EXTERNALIZED WITH SOME EISA CHIPSETS
C,D: EISA BUS SPECIFIC
Figure 5-1. Default Configuration for Discrete APIC
Version 1.4 |