MS-DOS and UNIX System IPC-1600 Use
Strategy
Native MS-DOS and UNIX System Operation
Requirement: The host computer must be set up to have base memory above 512KB (512KB to 640KB) disabled for the IPC-1600 to use controller memory starting addresses 080000h or 090000h. Refer to the customer documentation that came with your AT&T Work Group System (WGS) for information on how to disable base memory.
If you plan to use both the native (boot) MS-DOS and the UNIX system for the operation of the IPC-1600, proceed as follows.
Follow Chapter 3, “UNIX System Device Driver Installation,” procedures with the following recommendations.
❑Install the IPC-1600 board(s) using controller memory address space below 1MB.
❑Configure multiple IPC-1600 boards to share one Interrupt ReQuest (IRQ) level and share the same 64-KB controller memory address space.
After installing hardware (Chapter 4), install MS-DOS software starting with Step 3 in Chapter 2. Be sure to specify same controller memory starting address and I/O address(es) that were set when installing the UNIX system device driver and IPC-1600 hardware.
