Key SET PORT B TO READ PORT B AS RB3 RB2 RB1 RB0 | RB3 RB2 RB1 RB0 SW1 HiZ HiZ HiZ 0 | 0 0 1 X SW2 HiZ HiZ HiZ 0 | 0 1 0 X SW3 HiZ HiZ HiZ 0 | 0 1 1 X SW4 HiZ HiZ HiZ 0 | 1 0 0 X SW5 HiZ HiZ 0 HiZ | 0 0 X 1 SW6 HiZ HiZ 0 HiZ | 0 1 X 1 SW7 HiZ HiZ 0 HiZ | 0 1 X 0 SW8 HiZ HiZ 0 HiZ | 1 0 X 1 SW9 HiZ 0 HiZ HiZ | 0 X 1 1 SW10 HiZ 0 HiZ HiZ | 0 X 0 1 SW11 HiZ 0 HiZ HiZ | 0 X 1 0 SW12 HiZ 0 HiZ HiZ | 1 X 0 1 SW13 0 HiZ HiZ HiZ | X 0 1 1 SW14 0 HiZ HiZ HiZ | X 1 0 1 SW15 0 HiZ HiZ HiZ | X 1 1 0 SW16 0 HiZ HiZ HiZ | X 0 0 1
See also:
http://www.mikerj.clara.net/keypad.html
Questions:
| file: /techref/microchip/4x4key4io8diode.htm, 1KB, , updated: 2007/12/3 18:49, local time: 2008/9/7 01:06,
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