LV-673(E) User’s Manual
47
C4. <GPIO programmed>
The GPIO’can be programmed with the MSDOS debug program using simple
IN/OUT commands.The following lines show an example how to do this.
GPIO0…..GPIO7 bit0……bit7
-o 4E 87 ;enter configuration
-o 4E 87
-o 4E 29
-o 4E 40 ;enale GPIO function
-o 4E 07
-o 4E 07 ;enable GPIO configuration
-o 4E F0
-o 4F xx ;set GPIO as input/output; set ‘1’ for input,’0’for output
-o 4E F1
-o 4F xx ;if set GPIO’s as output,in this register its value can be set
Optional :
-o 4E F2
-o 4F xx ; Data inversion register ; ‘1’ inverts the current valus of the
bits ,’0’ leaves them as they are
-o 4E 30
-o 4F 01 ; active GPIO’s
For further information ,please refer to Winbond W83627THF datasheet.
Summary of Contents for LV-673 Serial
Page 1: ...LV 673 E Serial Mini ITXexpress Motherboard User s Manual Edition 1 3 2009 01 12 ...
Page 6: ...LV 673 E User s Manual 6 This Page is Left for Blank ...
Page 10: ...LV 673 E User s Manual Mechanical Drawing 10 1 3 Mechanical Drawing ...
Page 12: ...LV 673 E User s Manual 12 This Page is Left for Blank ...
Page 37: ...LV 673 E User s Manual BIOS Setup BIOS Setup 37 This Page is Left for Blank ...
Page 43: ...LV 673 E User s Manual 43 Appendix C System Resources C1 I O Port Address Map ...
Page 44: ...LV 673 E User s Manual System Resources Watchdog Timer Setting 44 ...
Page 45: ...LV 673 E User s Manual 45 C2 Memory Address Map ...