American Megatrends Enterprise-III User Manual page 16

Specifications,
Timer Features
The Enterprise-III has five programmable 16-bit counter/timers.
System Arbiter
The Enterprise-III has standard EISA arbitration features.
Refresh Generation
The Enterprise-III has a refresh generation feature.
I/O Capability
The Enterprise-III accesses 32-, 16-, or 8-bit memory devices and 32-, 16-, or 8-bit I/O devices on both the
VL-Bus and the EISA bus.
I/O Address Space
The Enterprise-III uses I/O addresses x100h through x3FFh for ISA compatible I/O (x = a "don't care"
character which does not affect mapping location. For example, I/O port addresses 0100h, 1100h, 2100h,
and 3100h map to the same location).
The Enterprise-III also uses the following EISA I/O port addresses:
• s000h through s0FFh for EISA expansion slot
• s400h through s4FFh for EISA expansion slot
• s800h through s8FFh for EISA expansion slot
• sC00h through sCFFh for EISA expansion slot
(s = EISA bus slot number, the motherboard is always 0)
Enterprise-III EISA VLB Motherboard User's Guide
Continued
11