Parallax P2 Edge Module - User Guide

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Tutorials: learn.parallax.com

Sales: sales@parallax.com

Tech Support: support@parallax.com

Sales: (888) 512-1024

Educator Hotline: (916) 701-8625

Office: (916) 624-8333

Fax: (916) 624-8003

P2 Edge Module (#P2-EC)

The P2 Edge Module is a simple way to get started with the Propeller 2 multicore

microcontroller. In addition to speeding development, this module provides an optimal P2

building block for system integrators and designers to include in their products.

The Propeller 2 P2X8C4M64P chip contains over 32 million transistors and >70 mm

of custom

silicon, 10x that of a typical microcontroller. The P2 contains 8 independent processors with

analog pad rings and Smart-pin functionality at all 64 I/O pins. Each smart I/O pin is capable of

many autonomous analog and digital functions, including ADC, DAC, PWM, USB, SERIAL,

Waveform generation, SMPS, Comparator, SCHMITT and LOGIC modes.

The P2 Edge Module includes the exposed-pad 100-pin TQFP P2X8C4M64P, core and I/O power

regulators, power filtering capacitors, crystal, flash memory, boot configuration switches, and

two user-configurable on-board LEDs to indicate system states. The PCB's six-layer design

features solid thermal and signal reference planes isolating each signal layer. The design is

optimized for low-noise analog and digital operation, and with low temperature rise even at

high-speed operation.

For development, the P2 Edge Module fits in the card edge socket of the spacious P2 Edge

Module Breadboard, the compact P2 Edge Mini Breakout Board, or the bare-bones P2 Edge

80-pin Adapter Kit. For product integration, several edge socket choices are available. This

arrangement allows developers to integrate the Propeller 2 into products without the need for

multi-layer cost or expertise. See the Propeller 2 section of www.parallax.com for options.

Summary of content (12 pages)

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Web Store: www.parallax.com Sales: (888) 512-1024 Tutorials: learn.parallax.com Educator Hotline: (916) 701-8625 Sales: sales@parallax.com Office: (916) 624-8333 Tech Support: support@parallax.com Fax: (916) 624-8003 P2 Edge Module (#P2-EC) The P2 Edge Module is a simple way to get started with the Propeller 2 multicore microcontroller. In addition to speeding development, this module provides an optimal P2 building block for system integrators and designers to include in their products.
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Features ● Compact module with Propeller 2 P2X8C4M64P multicore microcontroller ● 6-layer, low noise, system-on-board module ● Integrated thermal planes for low temperature rise characteristics at high speed operation ● Double-sided 80 way 0.05” (1.
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Feature Descriptions Read the full explanation of each labeled feature on the pages that follow this diagram. 1. Propeller 2 P2X8C4M64P The Propeller 2 has 8 independent processor cogs, 512 KB of shared hub RAM, and 64 Smart I/O pins. See the Propeller 2 documentation section of www.parallax.com for detailed information about this device. All I/O pins are brought out to the card edge pads; see 11. Edge connector.
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2. VDD Power Supply with reverse polarity input protection The VDD power supply is for the Propeller 2 core. This onboard power supply is based on a switching buck regulator, capable of delivering 2 A at 1.8 V. Short circuit, over-current, reverse-input polarity and brownout detection are also included. VDD is typically expected to be 1.8 V. This voltage powers the internal circuits of the P2 microcontroller.
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4. Crystal The P2 Edge Module is equipped with a 20 MHz crystal. Operational frequency is adjustable; for full operating frequency configuration details, options, and limits, refer to the Propeller 2 documentation at www.parallax.com. The Propeller 2's on-chip crystal oscillator with internal 9 pF load capacitance drives the 20 MHz crystal to provide a base clock frequency for the Propeller 2.
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Tip: △ and ▽ are both connected to the Propeller 2 I/O pin P59; one with a pull-up resistor to 3.3V, and the other with a pull-down resistor to GND. You may see these boot mode selection pins referred to in other documentation as P59 up and P59 down. Important! To avoid inconsistent behavior, only switch one of the △ or ▽ dip-switches ON. FLASH △ ▽ OFF OFF OFF ON or OFF ON OFF Serial window of 100 ms, then SPI flash. If SPI flash fails then serial window of 60 seconds.
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external pull-up resistors by default, and are completely flexible and free for the user to use as required. In user code those pins could be driven high or low, or have I/O pin pull-ups activated, to control the LEDs without the high-impedance behaviour. If the LEDs are not required, the P2 Edge Module dip-switch marked “LED” could be switched “OFF” to disable LED power. 8. LEDs P56 and P57 These two LEDs are mounted so that they are visible from both sides of the P2 Edge Module PCB.
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12. Optional 6 way Header Pads (Customer Option) These six 0.1” spaced pads connect to the Programming pads and 5V Power pads at the edge connector, and may be used to provide power and to program the P2 Edge Module with a Prop Plug programming tool (#32201). A suitable header from Samtec: TSM-106-01-F-SH. Programming Header Pads Marked △ ▽ RESn GND, the programming pins are compatible with the Parallax Prop Plug programming tool (#32201).
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Propeller 2 Physical Pins This illustration identifies the physical pins on the Propeller 2. See the Propeller 2 documentation at www.parallax.com for detailed information about the device. In this document, see the Edge Connector Pin Assignments section for details on how they are used on the P2 Edge Module. Copyright © Parallax Inc. P2 Edge Module (#P2-EC) v1.
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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 at www.parallax.
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Other Pins Description Internally pulled up to 3.3V with 10K resistor. RESn Propeller chip will reset when RESn driven low; all cogs disabled and I/O pins floating. Propeller restarts 3 ms after RESn transitions from low to high. Power input pins for the Edge Module. Connect both 5V edge connector pads to a good quality 5VDC supply. The supply voltage MUST NOT exceed 5.5V! 5V GND NC Recommended minimum supply current 100mA, up to 3A depending on customer code and circuit.
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Module Dimensions Revision History Version 1.0: original release. Version 1.5: Updated for RevB release. ● ● ● ● Silk screen markings added/improved. Narrow/adjust the edge pads to allow for thicker copper plating. Increase copper plating from 1.5oz to 2oz. On-board LEDs P56/P57; color changed to white (previous versions were green). Version 1.6: Edge Connector Pin Assignments table entry for P24-P31 updated. Version 1.6: Edge Connector Pin Assignments table entry for P24-P31 updated.