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XAPP512 Datasheet - Xilinx

Implementing Keypad Scanners

XAPP512 Features

* into them, they require more effective ways of entering data. Most cell phones, for example, use the standard DTMF style keypad and a multi-tap process to enter alphanumeric data; however, for larger amounts of data multi-tapping becomes cumbersome. More and more high-end phones are therefore employ

XAPP512 General Description

of Verilog source code for a keypad scanner. The code is used to target the lowest density, 32-macrocell CoolRunnerTM-II XC2C32A CPLD device in a CP56 package (6 mm x 6 mm). The keypad accommodated in this design has 8 rows and 8 columns. The design can easily be scaled to target keypads with more o.

XAPP512 Datasheet (313.51 KB)

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Datasheet Details

Part number:

XAPP512

Manufacturer:

Xilinx

File Size:

313.51 KB

Description:

Implementing keypad scanners.
www.DataSheet4U.com Application Note: CoolRunner-II CPLD R Implementing Keypad Scanners with CoolRunner-II XAPP512 (v1.0) April 4, 2005 Summary T.

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