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Application Notes/
Technical Brief
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AN556
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Title:
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Implementing a Table Read
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Name:
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AN556
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Date:
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8/26/97
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Author:
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Stan D'Souza
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Description:
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This application note shows how to implement a table look-up for the following devices: ? PIC12CXXX ? PIC12CEXXX ? PIC16CXXX ? PIC16CEXXX ? PIC16FXXX The examples shown are for the PIC16CXXX family. An explanation of differences for the PIC16C5X family is at the end of this application note. To access data in program memory, a table read operation must be performed. The table consists of a series of retlw K instructions where, the 8-bit table constants are assigned to the literal K. The first instruction in the table computes the offset to the table by using addwf PCL,F and consequently, the program branches to the appropriate retlw K instruction
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Keywords:
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DS00556E, AN556
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Related Information
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App Notes and Source Code
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AN556
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