3Com 3C389 User Manual

Contents

A-4 A PPENDIX A: U SING A M EMORY M ANAGEROn a PC using memory range D0000-DFFFFDEVICE=C:\DOS\EMM386.EXE NOEMS X=D000-DFFF..DEVICE=C:\PCMPLUS\PCMCS.EXE /WAIT=12/ADDR=D0 /IRQ=9IBM Card Servicesn The memory range used by 3C389 PC Cards must fallwithin the range specified by /MA.n The memory range used by Card Services itself (4 KB)must be included in the /MA range.n All of the /MA range must be excluded from yourmemory manager line.Phoenix Card Servicesn The memory used by Card Services starting at the/ADDR address and the memory used by the 3C389PC Card should be excluded from the memorymanager line.n If the /ADDR line is not used, the driver will use thefirst available address on a 4-KB boundary for CardServices. The memory manager line must exclude thisarea and the 3C389 PC Card memory area.Expanded Memory SpecificationExpanded memory specification (EMS) requires 64 KB(one page frame) of contiguous memory which maycause you to move your 3C389 PC Card memory range.With EMM386 you set the page frame base addressusing the FRAME= option on the memory manager linein the CONFIG.SYS. If the FRAME= option is not used,EMM386 will find the first 64-KB block of contiguousmemory. For example:Using a point enabler with the 3C389 PC Card atD0000-DBFFF, the C0000-CFFFF range is free for the EMS