Acer Power SC Power SC Service Guide - Page 25

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