Electronic specifications

 

 

 

 

 

 

 

 

 

Address

Resource

 

 

 

 

 

 

 

 

 

 

 

 

03F0h - 03F5h

Diskette Controller

 

 

 

 

 

 

 

 

 

 

 

03F6h - 03F7h

Primary IDE - Sec. Diskette

 

 

 

 

 

 

 

 

03F8h - 03FFh

Serial Port A (Primary)

 

 

 

 

 

 

 

 

0400h - 043Fh

DMA Controller 1, Extended Mode Registers

 

 

 

 

 

 

 

 

04D0h - 04D1h

Interrupt Controllers 1 and 2 Control Register

 

 

 

 

 

 

 

 

 

0678h - 067Ah

Parallel Port (ECP)

 

 

 

 

 

 

 

 

 

 

 

 

0778h - 077Ah

Parallel Port (ECP)

 

 

 

 

 

 

 

 

 

 

 

 

07BCh - 07BEh

Parallel Port (ECP)

 

 

 

 

 

 

 

 

 

 

 

 

0CA0 - CA3h

BMC Registers

 

 

 

 

 

 

 

 

 

 

 

0CF8h

PCI CONFIG_ADDRESS Register

 

 

 

 

 

 

 

 

0CF9h

NBX Turbo and Reset control

 

 

 

 

 

 

 

 

0CFCh

PCI CONFIG_DATA Register

 

 

 

 

 

 

 

 

46E8h

Video Display Controller

 

 

 

 

 

 

 

Memory map

 

 

 

 

 

 

 

 

 

 

Address Range (hex)AmountFunction

 

 

 

 

 

 

0 to 07FFFFh

640 KB

DOS region, base system memory

 

 

 

 

 

 

0A0000h to 0BFFFFh

128 KB

Video or SMM memory

 

 

 

 

 

 

0C0000h and 0DFFFFh

128 KB

Expansion card BIOS and buffer

 

 

 

 

area

 

 

 

 

 

 

0E0000h to 0FFFFFh

128 KB

System BIOS

 

 

 

 

 

 

0E0000h to 0EFFFFh

2 MB

Extended system BIOS

 

 

 

 

 

 

FC000000h to FFFFFFFFh

64 MB

PCI memory space

 

 

 

 

 

 

 

www.gateway.com

91