HS-873P
User’s Manual Programming GPIO’s
Programming GPIO
’s
45
Appendix D <Programming GPIO
’s>
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 2E 87 ;enter configuration
-o 2E 87
-o 2E 2A
-o 2F FD ;enable GPIO function
-o 2E 07
-o 2F 07 ;enable GPIO configuration
-o 2E F0
-o 2F xx ;set GPIO as input/output; set
‘1’ for input,’0’for output
-o 2E F1
-o 2F xx ;if set GPIO
’s as output, in this register its value can be set
Optional :
-o 2E F2
-o 2F xx ; Data inversion register ;
‘1’ inverts the current value of the bits ,’0’
leaves them as they are
-o 2E 30
-o 2F 01 ; active GPIO
’s
For further information, please refer to Winbond W83627THG datasheet.
Summary of Contents for HS-873P
Page 1: ...HS 873P Half size Single Board Computer User s Manual Edition 1 2 2011 09 13...
Page 9: ...HS 873P User s Manual Introduction Mechanical Drawing 9 1 3 Mechanical Drawing...
Page 41: ...HS 873P User s Manual 41 Appendix C System Resources C 1 I O Port Address Map...
Page 42: ...HS 873P User s Manual 42...
Page 43: ...HS 873P User s Manual 43 C 2 Memory Address Map...
Page 44: ...HS 873P User s Manual System Resources System IRQ Resources 44 C 3 System IRQ Resources...