Appendix | A1 |
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| Appendix A: |
MEMORY MAP |
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Address Range | Size | Description | |
512K | Conventional memory | ||
127K | Extended Conventional memory | ||
1K | Extended BIOS data area if PS/2 mouse is installed | ||
160K | Available for Hi DOS memory | ||
96K | Available for Hi DOS memory and adapter ROMs | ||
60K | Available for UMB | ||
4K | Video service routine for Monochrome & CGA adaptor | ||
32K | BIOS CMOS setup utility | ||
20K | BIOS runtime service routine (2) | ||
4K | Plug and Play ESCD data area | ||
8K | BIOS runtime service routine (1) | ||
I/O MAP |
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DMA controller.(Master) | |||
INTERRUPT CONTROLLER.(Master) | |||
CHIPSET control registers. I/O ports. | |||
TIMER control registers. | |||
KEYBOARD interface controller.(8042) | |||
RTC ports & CMOS I/O ports. | |||
DMA register. | |||
INTERRUPT controller.(Slave) | |||
DMA controller.(Slave) | |||
MATH COPROCESSOR. | |||
HARD DISK controller. | |||
PARALLEL port 2. | |||
GRAPHICS adapter controller. | |||
SERIAL port 2. | |||
NETWORK ports. | |||
PARALLEL port 1. | |||
MONOCHROME & PARALLEL port adapter. | |||
EGA adapter. | |||
CGA adapter. | |||
FLOPPY DISK controller. | |||
SERIAL port 1. |