WinSystems EBC-BX, Operation Manual

Page: 68 / 101

6
AP PEN DIX A - I/O Port Map
The fol low ing is a list of PC I/O ports. Ad dresses marked with a '-' are not used on the EBC- BX but
their use should be care fully quali fied so as not to con flict with other I/O boards. I/O ad dresses marked
with a '+' are used on the EBC- BX board and are unique to the Win Sys tems’ de sign. I/O Ad dresses
marked with '**' are gen er ally un used and should be the ba sis for the first choices in I/O ad dress se lec -
tion.
Hex Range Us age
000- 00F 8237 DMA #1
**010- 01F FREE
020- 021 8259 PIC #1
+022- 023 Fi nali 486 Chipset Reg is ters
**024- 03F FREE
040- 043 8254 Timer
**044- 05F FREE
060- 06F 8042 Key board Con trol ler
070- 071 CMOS RAM/RTC
**072- 07F FREE
080- 08F DMA Page Reg is ters
**090- 09F FREE
0A0- 0BF 8259 PIC #2
0C0- 0DF 8237 DMA #2
**0E0- 0EF FREE
0F0- 0F1 Co proc es sor Con trol
**0F2- 11F FREE
+120- 12F WS16C48 HDIO
**130- 1DF FREE
+1E0- 1EF SSD, Led, Watch dog con trol
1F0- 1FF Fixed Disk I/O
-200- 20F Joy stick port
-210- 21F PCM SSD I/O Ports
-220- 22F Sound blas ter I/O ports
**230- 237 FREE
-238- 23B BUS Mouse
**240- 277 FREE
278- 27F LPT1
**280- 2AF FREE
-2B0 -2DF EGA Video
-2E0 -2E7 GPIB In ter face
2E8- 2EF COM4
**2F0- 2F7 FREE
2F8- 2FF COM2
-300- 31F Pro to type Card
-320- 32F XT Hard Disk
**330- 377 FREE
-378- 37F Par al lel Printer
-380 -3AF SDLC
030923 OPERATIONS MANUAL EBC-BX Page 6 - 1