User Guide

Edge Connector Pin Assignments
Smart I/O pins P0–P55 are fully free; P56–P63 are routed to peripheral circuits and/or have
special functions related to Propeller 2 boot sequence options. Each smart I/O pin is capable of
many autonomous analog and digital functions. Examples include ADC, DAC, PWM, USB,
SERIAL, Waveform generation, SMPS, Comparator, SCHMITT and LOGIC modes.
See the Propeller 2 Documentation section of www.parallax.com for detailed information about
the full capabilities of the Propeller 2 Smart I/O pins.
Copyright © Parallax Inc. P2 Edge Module Breadboard (#64020) v1.1 11/30/2020 Page 8 of 11
I/O Pin
Description
P0-P7
Smart I/O pins, 3.3 V logic level, source or sink 30 mA per I/O pin. On-board LDO regulator
supplies 300 mA total, shared by this I/O pin group and edge connector pin V00.
P8-P15
Smart I/O pins, 3.3 V logic level, source or sink 30 mA per I/O pin. On-board LDO regulator
supplies 300 mA total, shared by this I/O pin group and edge connector pin V08.
P16-P23
Smart I/O pins, 3.3 V logic level, source or sink 30 mA per I/O pin. On-board LDO regulator
supplies 300 mA total, shared by this I/O pin group and edge connector pin V16.
P24-P31
Smart I/O pins, 3.3 V logic level, source or sink 30 mA per I/O pin. On-board LDO regulator
supplies 300 mA total, shared by this I/O pin group and edge connector pin V24.
P32-P39
Smart I/O pins, 3.3 V logic level, source or sink 30 mA per I/O pin. On-board LDO regulator
supplies 300 mA total, shared by this I/O pin group and edge connector pin V32.
P40-P47
Smart I/O pins, 3.3 V logic level, source or sink 30 mA per I/O pin. On-board LDO regulator
supplies 300 mA total, shared by this I/O pin group and edge connector pin V40.
P48-P55
Smart I/O pins, 3.3 V logic level, source or sink 30 mA per I/O pin. On-board LDO regulator
supplies 300mA total, shared by this I/O pin group and edge connector pin V48.
P56-P63
Smart I/O pins, 3.3 V logic level, source or sink 30 mA per I/O pin. On-board LDO regulator
supplies 300 mA total, shared by this I/O pin group and edge connector pin V56.
Alternative functions for P56-P63
P56
Buffered LED
P57
Buffered LED
P58
Flash SPI DO (MISO)
P59
Flash SPI DI (MOSI)
P60
Flash SPI CLK
P61
Flash SPI CS
P62
Prop-Plug RXD (P2 TXD)
P63
Prop-Plug TXD (P2 RXD)