Port assignment DP-113 demoboard
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LCD DISPLAY (1602 type = 16 character/ 2 lines ) |
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|
RW bit |
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portA |
2 |
|
RS bit |
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portA |
3 |
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E bit |
|
portA |
1 |
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Databit d0 |
|
portD |
0 |
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Databit d1 |
|
portD |
1 |
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Databit d2 |
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portD |
2 |
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Databit d3 |
|
portD |
3 |
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Databit d4 |
|
portD |
4 |
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Databit d5 |
|
portD |
5 |
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Databit d6 |
|
portD |
6 |
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Databit d7 |
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portD |
7 |
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VEE (contrast) |
|
portC |
1 |
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7 segment LED display (4 digits) |
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Segment a |
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portD |
0 |
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Segment b |
|
portD |
1 |
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Segment c |
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portD |
2 |
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Segment d |
|
portD |
3 |
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Segment e |
|
portD |
4 |
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Segment f |
|
portD |
5 |
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Segment g |
|
portD |
6 |
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Segment decimal point |
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portD |
7 |
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Digit 1 |
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portB |
7 |
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Digit 2 |
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portB |
6 |
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Digit 3 |
|
portB |
5 |
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Digit 4 |
|
portB |
4 |
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LEDs |
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|
PWR |
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|
|
|
RB0 |
|
portB |
0 |
|
RB1 |
|
portB |
1 |
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RB2 |
|
portB |
2 |
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RB3 |
|
portB |
3 |
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SWITCHES |
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|
SW1 RA4 |
|
portA |
4 |
|
SW2 RB0 |
|
portB |
0 |
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SW3 (reset/mclr) |
|
portE |
3 |
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CP2102 (USB/RS232 converter) |
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|
USB Tx |
|
portC |
7 |
|
USB Rx |
|
portC |
6 |
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SPEAKER |
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|
output |
|
portC |
2 |
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LM75 temperature tmx (I2C addr. = 0xA0 ) |
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|
SDA |
|
portC |
4 |
|
SCL |
|
portC |
5 |
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24C04 EEPROM (4K bit serial I2C eeprom) |
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|
SDA |
|
portC |
4 |
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SCL |
|
portC |
5 |
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OSCILLATOR (20 Mhz crystal) |
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|
OSC1 |
|
portA |
6 |
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OSC2 |
|
portA |
7 |
