Compatibility with iCEstick Evaluation Kit
| Feature | iCEstick | ICEd | Notes |
|---|---|---|---|
| FPGA | iCE40HX1K | ice40HX1K | optional assembly with iCE40HX4K |
| Pmod Slot | vertical (not fully compliant to Pmod Specification) | R/A version as per Pmod Specification | Pinout compatible |
| USB Connector | USB B, "stick form factor" | micro USB | in rev 2 changed to mini USB |
| USB Interface | FT2232H | FT2232H | |
| FTDI EEPROM | 93LC56 | 93AA56 | |
| SPI Flash size | 4Mbyte | 16Mbyte | |
| SPI Flash type | Micron N25Q032A | Spansion S25FL127S | Supported by Diamond Programmer |
| SPI Flash Connection | One bit I/O only | Quad 4 Bit mode supported | |
| SPI Flash Programming | yes, USB | yes, USB | Supported by Diamond and open source tools |
| Configuration RAM Programming | not supported | yes, USB | Supported by Diamond and open source tools |
| 12MHz Clock | Pin 21 | Pin 21 | Same as iCEstick, shared from FTDI Clock |
| iRDA | available | not present | Pins are available in Arduino Analog Header |
| LED0 | LED0 red | RGB LED | |
| LED1 | LED1 red | RGB LED | |
| LED2 | LED2 red | RGB LED | |
| LED3 | LED3 red | SMD LED green | |
| LED4 | LED4 green | not present |
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