Touch screen tablet baseboard Specification
specification subject to change and is provided as guidance only
| Board Features | |||||
|---|---|---|---|---|---|
| Feature | Specification | Bronze | Silver | Gold | |
| Module | Simtec IM-D20 module socket. | ![]() |
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| Video | URT LCD Display | 5.7" | 5.7" | 5.7" | |
| Touch input | URT touch panel for display | ![]() |
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| Peripherals | USB | Host ports | 2 | 2 | 2 |
| Device port - replaces one host, onboard software termination | 1 | 1 | 1 | ||
| Serial | RS232 with full control signals | 1 | 1 | 1 | |
| LVTTL with control signals | 1 | 1 | 1 | ||
| SD/MMC | Full SD slot with card detect | ![]() |
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| 10/100 Ethernet | DM9000A | ![]() |
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| ZigBee connectivity | Jennic JN5139r1 | ![]() |
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| Audio | TLV320AIC23 codec | ![]() |
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| Simple mono speaker amplifier | ![]() |
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| ADCs | With potentiometers | 0 | 1 | 2 | |
| RTC | external battery input 1.8 - 3.6V | ![]() |
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| Accelerometer | Bosch SMB320 | ![]() |
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| JTAG | All necessary JTAG signals to communicate with the 2440 and system CPLD. | ![]() |
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| Power | Single 5V input (also powerable from USB device port) | ![]() |
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| Dimensions | Eurocard sized with cutouts for LCD wiring. (100mm x 160mm) | ![]() |
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Power Usage
Practical measurement of a Gold specification board worst case power usage with a gold specification IM2440D20, its CPU running at 400MHz and 256MB of memory clocked at 133MHz, playing sound, accessing the network and with the screen at full brightness gives a current consumption of 750mA at 5V (3.75W) . Slowing the CPU and using the Digital Voltage Scaling(DVS) system can substantialy reduce this, as can turning the ethernet off and not playing sounds as loudly or at all. In addition Linux allows for complete suspend to RAM which can reduce standby power usage to very low levels.
All figures are subject to a 1% measurement accuracy and are for guidance purposes only.
Other pages
- Introduction - A general introduction to the Touch screen tablet baseboard.
- Availability - Price and availability.
- Resources - Documentation and software resources for the Touch screen tablet baseboard.
- Gallery - Images of the Touch screen tablet baseboard.

