Appendix B Technical Summary
I/O & MEMORY MAP
Memory Map :
MEMORY MAP | ASSIGNMENT |
System memory used by DOS and | |
| application |
Display buffer memory for VGA/ EGA / | |
| CGA / MONOCHROME adapter |
Reserved for I/O device BIOS ROM or | |
| RAM buffer. |
Reserved for PCI device ROM | |
System BIOS ROM | |
System extension memory |
I/O Map :
I/O MAP | ASSIGNMENT |
DMA controller (Master) | |
Interrupt controller (Master) | |
Chipset controller registers I/O ports. | |
Timer control regsiters. | |
Keyboard interface controller (8042) | |
RTC ports & CMOS I/O ports | |
DMA register | |
Interrupt controller (Slave) | |
DMA controller (Slave) | |
Math coprocessor | |
Hard Disk controller | |
Parallel | |
Graphics adapter controller | |
Serial | |
Net work ports | |
Parallel | |
Monochrome & Printer adapter | |
EGA adapter | |
CGA adapter | |
Floppy disk controller | |
Serial |
Page: |