Connect to the 22K resistor of the PICAXE download circuit

This pin can be used as a digital input and a digital output or can be used as an analogue input

This pin can be used as a digital input only

This pin can be used as a digital input and a digital output. This pin can be used to generate a background PWM output signal using the PWMOUT or HPWM commands

This pin can be used as a digital input and a digital output. This pin can be used to generate a background PWM output signal using the HPWM command

This pin can be used as a digital input and a digital output or can be used as an analogue input. This pin can be used to generate a background PWM output signal using the HPWM command

This pin can be used as a digital input and a digital output or can be used as an analogue input. If using the PICAXE with a PS/2 keyboard this pin should connect to the 'PS/2 Keyboard Clock' signal ( pin 5 on a PS/2 mini-DIN connector ) and a 4K7 resistor should connect from this pin to the positive rail of the power supply in your circuit

This pin can be used as a digital input and a digital output or can be used as an analogue input. If using the PICAXE with SPI devices this pin should connect to the 'SPI Data In' (DI/DIN/SI) pins of those devices. If using the PICAXE with a PS/2 keyboard this pin should connect to the 'PS/2 Keyboard Data' signal ( pin 1 on a PS/2 mini-DIN connector ) and a 4K7 resistor should connect from this pin to the positive rail of the power supply in your circuit

This pin can be used as a digital input and a digital output. This pin can be used to output high-speed serial data

This pin can be used as a digital input and a digital output. If using the PICAXE with I2C devices this pin should connect to the 'I2C Clock' (SCL) pins of those devices and a 4K7 resistor should connect from this pin to the positive rail of the power supply in your circuit. If using the PICAXE with SPI devices this pin should connect to the 'SPI Clock' (SCK/SCLK) pins of those devices

This pin can be used as a digital input and a digital output or can be used as an analogue input. This pin can be used to receive high-speed serial data

This pin can be used as a digital input and a digital output or can be used as an analogue input. If using the PICAXE with I2C devices this pin should connect to the 'I2C Data' (SDA) pins of those devices and a 4K7 resistor should connect from this pin to the positive rail of the power supply in your circuit. If using the PICAXE with SPI devices this pin should connect to the 'SPI Data Out' (DO/DOUT/SO) pins of those devices

This pin can be used as a digital input and a digital output or can be used as an analogue input. This pin can be used as an input for the internal 'C1' comparator. This pin can be used to generate a background PWM output signal using the HPWM command

This pin can be used as a digital input and a digital output or can be used as an analogue input. This pin can be used as an input for the internal 'C2' comparator

This pin can be used as a digital input and a digital output or can be used as an analogue input. This pin can be used as an input for the internal 'C2' comparator

This pin can be used as a digital input and a digital output or can be used as an analogue input. This pin can be used as an input trigger to initiate a 'hardware interrupt'

This pin can be used as a digital input and a digital output or can be used as an analogue input. This pin can be used to set the upper voltage converted by the ADC. This pin can be used as an input trigger to initiate a 'hardware interrupt'

Connect to the output pin of the download connector for the PICAXE download circuit. This pin can also be used as an independent digital output

Connect to the 0V (ground) of the power supply in your circuit