3Com 3C389 User Manual
Page 68
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PPENDIX
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SING
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M
EMORY
M
ANAGER
On a PC using memory range D0000-DFFFF
DEVICE=C:\DOS\EMM386.EXE NOEMS X=D000-DFFF
.
.
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