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Table of Contents Intel® Server Board SE7520JR2
Revision 1.0
C78844-002
vi
3.4.3 Interrupt Routing ....................................................................................................52
3.4.3.1 Legacy Interrupt Routing....................................................................................52
3.4.3.2 APIC Interrupt Routing .......................................................................................53
3.4.3.3 Legacy Interrupt Sources ...................................................................................54
3.4.3.4 Serialized IRQ Support ......................................................................................54
3.4.3.5 IRQ Scan for PCIIRQ ......................................................................................... 55
3.4.4 SCSI Support.........................................................................................................58
3.4.4.1 LSI* 53C1030 Dual Channel Ultra320 SCSI Controller .....................................58
3.4.4.2 Zero Channel RAID............................................................................................60
3.4.5 IDE Support ...........................................................................................................60
3.4.5.1 Ultra ATA/100..................................................................................................... 61
3.4.5.2 IDE Initialization .................................................................................................61
3.4.6 SATA Support........................................................................................................61
3.4.6.1 SATA RAID ........................................................................................................ 62
3.4.6.2 Intel® RAID Technology Option ROM................................................................ 62
3.4.7 Video Support ........................................................................................................62
3.4.7.1 Video Modes ......................................................................................................62
3.4.7.2 Video Memory Interface ..................................................................................... 63
3.4.7.3 Dual video ..........................................................................................................64
3.4.8 Network Interface Controller (NIC) ........................................................................64
3.4.8.1 NIC Connector and Status LEDs .......................................................................65
3.4.9 USB 2.0 Support....................................................................................................65
3.4.10 Super I/O Chip .......................................................................................................65
3.4.10.1 GPIOs ..............................................................................................................65
3.4.10.2 Serial Ports....................................................................................................... 67
3.4.10.3 Removable Media Drives ................................................................................. 69
3.4.10.4 Floppy Disk Support.........................................................................................69
3.4.10.5 Keyboard and Mouse Support .........................................................................69
3.4.10.6 Wake-up Control ..............................................................................................69
3.4.11 BIOS Flash ............................................................................................................69
3.5 Configuration and Initialization............................................................................... 70
3.5.1 Memory Space....................................................................................................... 70
3.5.1.1 DOS Compatibility Region .................................................................................71
3.5.1.2 Extended Memory .............................................................................................. 73
3.5.1.3 Memory Shadowing ...........................................................................................74
3.5.1.4 System Management Mode Handling ................................................................ 75
3.5.2 I/O Map ..................................................................................................................76
3.5.3 Accessing Configuration Space.............................................................................78
3.5.3.1 CONFIG_ADDRESS Register............................................................................ 79
3.6 Clock Generation and Distribution......................................................................... 79
4. System BIOS.......................................................................................................................80
4.1 BIOS Identification String....................................................................................... 80
4.2 Flash Architecture and Flash Update Utility........................................................... 81