Lynx EPM-4 manual Map, On-Board I/O Devices

Memory and I/O Map

I/O MAP

The following table lists the common I/O devices in the EPM-4 I/O map. User I/O devices should be added in the 104h – 3FFh range, using care to avoid the devices already in the map as shown below.

Table 9: On-Board I/O Devices

	Standard
I/O Device	I/O Addresses
See ÉlanSC520 register set manual	000h-0FFh
Special Control Register	0E0h
Revision Indicator Register	0E1h
Map and Paging Control Register	0E3h
Primary IDE Controller	1F0h	– 1F6h
COM 4 Serial Port	2E8h – 2EFh
COM 2 Serial Port	2F8h	– 2FFh
COM 3 Serial Port	3E8h	– 3EFh
Floppy Disk Controller	3F0h	– 3F7h
COM1 Serial Port	3F8h	– 3FFh
CBAR	FFFCh-FFFFh

Note: I/O ports occupied by on-board devices are freed up when the device is disabled in CMOS Setup.

EPM-4 Reference Manual Reference – 37