DATAMATH CALCULATOR MUSEUM
Texas Instruments Presentation Link Adapter
|Date of introduction:||2004||Display technology:|
|New price:||$39.95 (SRP 2008)||Display size:|
|Size:|| 3.1" x 1.9" x
80 x 48 x 16 mm3
|Weight:||1.5 ounces, 42 grams||Serial No:||2161005296|
|Batteries:||n.a.||Date of manufacture:||mth 06 year 2007 (B)|
|AC-Adapter:||Origin of manufacture:||China (S)|
|Precision:||Integrated circuits:||TUSB3210PM, 24LC08|
|Program steps:||Courtesy of:||Joerg Woerner|
The Presentation Link Adapter connects either the ViewScreen panel or the TI-Presenter to student calculator featuring the USB port. In 2007 two different Presentation Link Adapters were available:
|• TI-84 Plus family: Connects to the
Plus and TI-84 Plus Silver Edition with
• TI-89 Titanium Adapter: Connects to the TI-89 Titanium with Cable 2
Dismantling the TI-84 Plus Presentation Adapter reveals a smart design based on a Texas Instruments TUSB3210
"Universal Serial Bus General-Purpose Device Controller." This compact device, housed in a 64-pin LQFP package, is fully compliant with the USB 2.0 specification and integrates a 8052 microcontroller, 256 Bytes RAM for internal data, 8k Bytes RAM code space for the user program, 512 Bytes Shared RAM for the USB data and even four 8052 GPIO ports into a single chip.
The program code is downloaded during power-up from a serial EEPROM, we located in this product a tiny Microchip 24LC08 device with just 1k Byte capacity. We assume that some of the GPIO lines (General Purpose Input / Output) are used for the ViewScreen interface.
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© Joerg Woerner, March 2, 2009. No reprints without written permission.