Acer Power SD Power SD Service Guide - Page 23

Memory Address Map Address 0A0000 - 0BFFFF 0C0000 - 0C7FFF 0C8000 - 0DFFFF 0E0000 - 0EFFFF 0F0000 - 0FFFFF 100000 - UPPER LIMIT UPPER LIMIT - 4GBytes 128KBytes 32KBytes 96Kbytes 64Kbytes Size 64Kbytes Function 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 I/O Address Map 000-01F 020-021 040-043 060-060 061-061 070-071 080-08F 0A0-0A1 0C0-0DF 0F0-0FF 170-177 1F0-1F7 278-27F 2F8-2FF 378-37F 3F0-3F5 3F6-3F6 3F7-3F7 3F8-3FF 0CF8 0CFC 778-77A Hex Range Devices DMA Controller-1 Interrupt Controller-1 System Timer Keyboard Controller 8742 System Speaker CMOS RAM Address and Real Time Clock DMA Page Register Interrupt Controller-2 DMA Controller-2 Math Co-Processor Secondary IDE Primary IDE Parallel Printer Port 2 Serial Asynchronous Port 2 Parallel Printer Port 1 Floppy Disk Controller Secondary IDE Primary IDE Serial Asynchronous Port 1 Configuration Address Register Configuration Data Register Parallel Printer Port 1 16 Chapter 1