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CS5320 데이터시트(PDF) 54 Page - Applied Micro Circuits Corporation |
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CS5320 데이터시트(HTML) 54 Page - Applied Micro Circuits Corporation |
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54 / 160 page ![]() S5320 – PCI Match Maker: PCI Configuration Registers 54 DS1656 AMCC Confidential and Proprietary Revision 5.03 – June 14, 2006 Data Sheet Interrupt Line Register (INTLN) This register indicates the interrupt routing for the S5320 controller. The ultimate value for this register is system-architecture specific. For x86 based PCs, the values in this register correspond with the established interrupt numbers associated with the dual 8259 con- trollers used in those machines. In x86-based PC systems, the values of 0 to 15 correspond with the IRQ numbers 0 through 15, and the values from 16 to 254 are reserved. The value of 255 (the controller’s default power-up value) signifies either “unknown” or “no con- nection” for the system interrupt. This register is boot- loaded from the external boot memory or may be writ- ten by the PCI interface. Figure 21. Interrupt Line Register Register Name: Interrupt Line Address Offset: 3Ch Power-up value: FFh Boot-load: External nvRAM offset 7Ch Attribute: Read/Write Size: 8 bits FFh 0 7 |
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