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Chapter 1 17
USB Port
Item Specification
Universal HCI USB 1.1
USB Class Support legacy keyboard for legacy mode
Memory Address Map
Address Size Function
000000 - 07FFFF 512KBytes Host Memory
080000 - 09FFFF 128KBytes Host/PCI Memory
0A0000 - 0BFFFF 128KBytes PCI/ISA Video Buffer Memory
0C0000 - 0C7FFF 32KBytes Video BIOS Memory
0C8000 - 0DFFFF 96Kbytes ISA Card BIOS & Buffer Memory
0E0000 - 0EFFFF 64Kbytes BIOS Extension Memory
Setup and Post Memory
PCI Development BIOS
0F0000 - 0FFFFF 64Kbytes System BIOS Memory
100000 - UPPER LIMIT Main Memory
UPPER LIMIT - 4GBytes PCI Memory
PCI INTx# and IDSEL Assignment Map
PCI INTx # PCI Devices Device IDSEL: ADxx
INTA# ADIMM-slot N
INTB# PCI-Slot1 AD20
INTC# PCI-Slot2 AD22
INTD# PCI-Slot3 AD24
PCI Slot IRQ Routing Map
PCI INTX# INTA INTB INTC INTD Bus Mastering
PCI slot 1 Route 4 Route 1 Route 2 Route 3 Enabled
PCI slot 2 Route 3 Route 4 Route 1 Route 2 Enabled
PCI slot 3 Route 2 Route 3 Route 4 Route 1 Enabled