3Com 3C389 manual Expanded Memory Specification, IBM Card Services, Phoenix Card Services

A-4APPENDIX A: USING A MEMORY MANAGER

On a PC using memory range D0000-DFFFF

DEVICE=C:\DOS\EMM386.EXE NOEMS X=D000-DFFF

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DEVICE=C:\PCMPLUS\PCMCS.EXE /WAIT=12 /ADDR=D0 /IRQ=9

IBM Card Services

■The memory range used by 3C389 PC Cards must fall within the range specified by /MA.

■The memory range used by Card Services itself (4 KB) must be included in the /MA range.

■All of the /MA range must be excluded from your memory manager line.

Phoenix Card Services

■The memory used by Card Services starting at the /ADDR address and the memory used by the 3C389 PC Card should be excluded from the memory manager line.

■If the /ADDR line is not used, the driver will use the first available address on a 4-KB boundary for Card Services. The memory manager line must exclude this area and the 3C389 PC Card memory area.

Expanded Memory Specification

Expanded memory specification (EMS) requires 64 KB (one page frame) of contiguous memory which may cause you to move your 3C389 PC Card memory range. With EMM386 you set the page frame base address using the FRAME= option on the memory manager line in the CONFIG.SYS. If the FRAME= option is not used, EMM386 will find the first 64-KB block of contiguous memory. For example:

Using a point enabler with the 3C389 PC Card at

D0000-DBFFF, the C0000-CFFFF range is free for the EMS