User manual

T1 Modem Bank
88
EISA Host Adapters
The Digi EISA EPC/X host adapter has 1 megabyte of on-board dual-ported RAM which is accessed through a 32K
“window”, which can be mapped into any 32K region in the computer’s memory address space up to the 4 gigabyte
limit. The EISA EPC/X configuration file provides sixteen address ranges below 1 megabyte, and sixteen address
ranges in the fourth gigabyte:
Below 1 Megabyte:*
80000h 88000h 90000h 98000h
A0000h A8000h B0000h B8000h
C0000h C8000h D0000h D8000h
E0000h E8000h F0000h F8000h
Above 1 Megabyte:
F0000000h F1000000h F2000000h F3000000h
F4000000h F5000000h F6000000h F7000000h
F8000000h F9000000h FA000000h FB000000h
FC000000h FD000000h FE000000h FF000000h
* When addressed below 1 megabyte, the same constraints apply as for the ISA host adapter (see page 87).