FabIATech Corporation67I/O Port Address MapEach peripheral device in the system is assigned a set of I/O port addresses, whichalso becomes the identity of the device. There is a total of 1K-port address spaceavailable. The following table lists the I/O port addresses used on the Industrial CPUCard.Address Device Description000h – 00Fh DMA Controller #1020h – 021h Interrupt Controller #1040h – 043h System Timer060h – 064h Keyboard Controller070h – 073h Real Time Clock080h – 090h DMA Page Register0A0h – 0A1h Interrupt Controller #20C0h - 0DFh DMA Controller #20F0h Clear Math Coprocessor Busy Signal0F1h Reset Math Coprocessor1F0h - 1F7h Primary IDE Interface376h Secondary IDE Controller3B0 – 3DFh VGA Adapter3F7h Primary Controller3F8h - 3FFh Serial Port #1(COM1)400h – 45Fh ACPI I/O SpaceCF8h – CFFh PCI Configuration Port
