Specifications

Appendix C - Ethernet
Page C-5
C C
Note that the area excluded may be greater than that required by the Ethernet
controller due to other system requirements.
If you are unsure how to make these changes, refer to the Microsoft DOS User's
Guide and Reference and Microsoft Windows Operating System manuals.
Interrupts
Use the tab key to scroll through the displayed options and select one of the listed
interrupts. Note that AUTOSET lists all interrupts, not simply those that are
available. Use the Diagnostics routine in AUTOSET to detect invalid interrupts.
Physical Media
The only physical media option for the Ethernet controller on the EPC-33/34 is
10BaseT.
Adapter Architecture
There are two options for the method of data exchange between the CPU and the
Ethernet controller. Use the tab key to toggle the displayed option and choose the I/O
Port or Shared Memory for data exchange.
NE2000 and NE2000+ users should select the I/O Port mode.
WD8003 and WD8013 users should select the Shared Memory mode.
Systems with limited amounts of memory should select I/O Port mode to avoid
conflicts with other memory-mapped devices.
Systems with ample memory, where increased performance is important, should
select Shared Memory mode.