IRQ 11 Available IRQ 12 PS/2 mouse
IRQ 13 INT from
IRQ 3 Serial communication port 2 IRQ 4 Serial communication port 1 IRQ 5 Available
IRQ 6 Diskette controller (FDC) IRQ 7 Available
B.14 1st MB Memory Map
Table
Addr. range (Hex) Device
F000h - FFFFh System ROM CC00h - EFFFh Unused CA00h - CBFFh Used
C000h - C9FFh Expansion ROM B800h - BFFFh CGA/EGA/VGA text B000h - B7FFh Unused
A000h - AFFFh EGA/VGA graphics 0000h - 9FFFh Base memory.