HS-874P User’s Manual Programming GPIO’s
Programming GPIO’s
55
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 W83627DHG datasheet.
Summary of Contents for HS-874P
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Page 9: ...HS 874P User s Manual Introduction Mechanical Drawing 9 1 3 Mechanical Drawing...
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Page 53: ...HS 874P User s Manual Programming GPIO s Programming GPIO s 53 C2 Memory Address Map...
Page 54: ...HS 874P User s Manual Watch Dog timer Setting Programming GPIO s 54 C3 System IRQ Resources...
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