WinSystems SAT-520PLUS, Руководство по эксплуатации, Страница: 38 / 50

070223 Operations Manual SAT-520PLUS 32
I/O Port Map
The following is a list of PC I/O ports. Addresses marked with a ‘-’ are not used on the
SAT-502Plus but their use should be carefully evaluated so as not to conflict with other
I/O boards. I/O addresses marked with a
‘+’ are used on the SAT-520Plus and are
unique to the WinSystems design. I/O addresses marked with ‘**’ are generally unused
and should be the basis for the first choices in I/O address selection for external I/O
boards.
NOTE : The SAT-520Plus uses a PnP BIOS for both the PC/104Plus and the PC/104 bus I/O
resource allocations. Care must be taken to avoid contention with resources allocated by
the BIOS.
HEX Range Usage
000-00F 8327 DMA Controller #1
**010-01F Free
020-021
8259 PIC #1
**022-03F Free
040-043 8254 PIT
**044-05F Free
060-06F 8042 Keybrd/Mouse Control
070-07F CMOS RAM, Clock/Calendar
080-09F DMA Page Registers
0A0-0BF 8259 PIC #2
0C0-0DF 8237 DMA Controller #2
**0E0-0EF Free
0F0-0F1 Math Coprocessor Control
**0F2-0F7 Free
085-0FF Math Coprocessor
100-102 VGA Control Register
**103-16F Free
170-177 IDE Controller #2
**178-1EC Free
+1ED-1EF Watchdog/LED Control
1F0-1FF IDE Controller #1
200-207 Game Port
**208-237 Free
238-23B Bus Mouse
23C-23F Alt. Bus Mouse
**240-277
Free
278-27F Parallel Port
**280-2a7 Free
2A8-2AF Serial Port
2B0-2BF EGA
2C0-2CF EGA
2D0-2DF EGA
2E0-2E7 GPIB Interface
2E8-2EF Serial Port
**2F0-2F7 Free
2F8-2FF Serial Port
HEX Range Usage
**300-32F Free
370-377 Floppy Disk Controller #2
378-37F Parallel Printer
**380-3A7 Free
3A8-3AF Serial Port
3B0-3BB MDA
3BC-3BF Parallel Port
3C0-3CF EGA/VGA
3D0-3DF CGA
**3E0-3E7 Free
3E8-3EF Serial Port
3F0-3F7 Floppy Disk Controller #1
3F8-3FF Serial Port