Appendix A Configuration Options

15

Interrupt Level

Default: Level 15

Options: Level 10

Level 12

This selects the hardware interrupt level that the MCMaster uses. There's no reason to select a level other than 15, unless this conflicts with another adapter already in the PS/2 system.

Option ROM Address

Default: D0000-D3FFF

Options: C8000-CBFFF

D8000-DBFFF

"Disable board"

The MCMaster has an option ROM (Read Only Memory) that contains program code to control the MCMaster's startup and operation. This entry allows you to change the address to prevent conflicts with other adapters' option ROMs. Note that the option ROM only takes up 16K (16384 bytes) of option ROM space, even though its base address must be on a 32K boundary.

The "Disable board" option renders the MCMaster's ROM invisible to the Micro Channel bus: don't select this option unless instructed to by Kingston Technical Support for diagnostic purposes.

Model 80 ID (AIX)

Default: No

Option: Yes

The AIX operating system does a system check (INT 15h, Function C0h) at boot time. In a Model 50 or 60, it will "think" that it is in an 80286-based system, and not boot. Selecting "YES" causes the MCMaster to return the system ID of a PS/2 Model 80.

MCMaster User’s Guide - Rev. B06

Kingston Technology Company

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Kingston Technology MC133PD manual Interrupt Level, Option ROM Address, Model 80 ID AIX