9-Pin in-circuit connector description
1: P1: 8-13V Vpp output pin
2: P2: I/O pin with weak pull-up 8.2k resistor
3: P3:I/O pin
4: P4I/O pin
5: P5: GND
6: P6: I/O pin with weak pull-up 8.2k resistor
7: P7:I/O pin
8: P8:I/O pin
9: P9: 1.2-5V Power supply output, max 0.3A
30-Pin adapter connector description
1-9: P1-P9 the same pins as 9-Pin in-circuit connector
10-29: D0-D19 I/O pins
30: GND