ECM-3610/3610L
ECM-3610/3610L User’s Manual 135
I/O – Map
The board incorporates a fully ISA Bus Compatible slave interface. The drive capabilities
allow for up to four external PC/104 modules to be driven without external data buffers.
The accessible I/O area on the ISA-bus is 64Kbytes with 16 address bits, whereas the
accessible memory area is 16Mbytes with 24 address bits.
Certain I/O addresses are subject to change during boot as PnP managers may relocate
devices or functions. The addresses shown in the table are typical locations.
I/O Port Description Note
0000h-000Fh Direct memory access controller
0010h-001Fh Motherboard resources
0020h-0021h Programmable interrupt controller
0022h-003Fh Motherboard resources
0040h-0043h System timer
0044h-005Fh Motherboard resources
0060h-0060h Standard 101/102-Key or Microsoft Natural Keyboard
0061h-0061h System speaker
0062h-0063h Motherboard resources
0064h-0064h Standard 101/102-Key or Microsoft Natural Keyboard
0065h-006Fh Motherboard resources
0070h-0073h System CMOS/real time clock
0074h-007Fh Motherboard resources
0080h-0090h Direct memory access controller
0091h-0093h Motherboard resources
0094h-009Fh Direct memory access controller
00A0h-00A1h Programmable interrupt controller
00A2h-00BFh Motherboard resources
Note:
The usage of these I/O addresses depends on the choices made in the Evalue
setup screen. The I/O addresses are fully usable for PC/104 interface if the
corresponding on-board unit is disabled in the setup screen.
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