Pin | Name | I/O | Description |
---|---|---|---|
SOUT | 1 | OUT | DOWNLOAD SERIAL OUTPUT |
SIN | 2 | IN | DOWNLOAD SERIAL INPUT |
ATN | 3 | IN | DOWNLOAD SERIAL RESET (DTR) |
VSS | 4 | POWER | GROUND |
P0 | 5 | I/O | SPI SS |
P1 | 6 | Input | SPI SCK |
P2 | 7 | I/O | SPI MOSI |
P3 | 8 | I/O | SPI MISO |
P4 | 9 | I/O | |
P5 | 10 | I/O | PWM0 |
P6 | 11 | I/O | PWM1 |
P7 | 12 | I/O | PWM2 |
P8 | 25 | I/O | ADC0 : AD Channel 0 |
P9 | 26 | I/O | ADC1 : AD Channel 1 |
P10 | 27 | I/O | ADC2 : AD Channel 2 |
P11 | 28 | I/O | ADC3 : AD Channel 3 |
P12 | 29 | I/O | ADC4 : AD Channel 4 |
P13 | 30 | I/O | ADC5 : AD Channel 5 |
P14 | 31 | I/O | ADC6 : AD Channel 6 |
P15 | 32 | I/O | ADC7 : AD Channel 7 |
P16 | 83 | I/O | CUNET SCL |
P17 | 84 | I/O | CUNET SDA |
P18 | 85 | I/O | INT 2 |
P19 | 86 | I/O | INT 3 |
P20 | 97 | I/O | |
P21 | 98 | I/O | |
P22 | 99 | I/O | High Counter Channel 0 |
P23 | 100 | I/O | High Counter Channel 1 |
P24 ~ P55 | Output | Output only port | |
P56 ~ P108 | Input | Input Only port | |
P88 | 81 | N/C | do not use |
P89 | 82 | I/O | PWM3 |
P90 | 95 | I/O | PWM4 / INT0 |
P91 | 96 | I/O | PWM5 / INT1 |
VDD | 21,44 | IN | Input Power 5.1V~5.5V |
VSS | 22,64 | IN | GROUND |
RES | 23 | IN | Reset (Low Active) |
VBB | 24 | IN | Battery backup VCC |
TX1 | 41 | RS232 ch1, +/- 12V Tx | |
RX1 | 42 | RS232 ch1, +/- 12V Rx | |
AVDD | 43 | This pin Must be open | |
TTLTX1 | 61 | RS232 ch1, 5V (TTL level) Tx | |
TTLRX1 | 62 | RS232 ch1, 5V (TTL level) Rx | |
AVREF | 63 | ADC reference voltage |