Intel SE7520JR2 Technical Manual page 6

Table of Contents
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
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C78844-002
Intel® Server Board SE7520JR2
Revision 1.0