Difference between FSR0 read and TBLRD | Piclist

A discussion group for the PICMicro microcontroller. Also called the Microchip PIC, this list is dedicated to the use and abuse of this fine, simple, microcontroller. Close to topic posts are welcome, ie. general electronics.

Hi all, What is the difference between using TBLRD and FSR0,FSR1. Can anyone explain to me how data memory read and program memory read. When TBLRD is done where does data is read from exactly. I want to use PIC18f452 for my application. Thanks, Kalyan

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FSR is used to select a file register (thats RAM) for read or write via INDF. These only works on RAM.
TBLPTR is used to select a program memory location for read or write via TABLAT. These only works on program memory
See datasheet, it explains it all.

kalyanramuv wrote:

Hi all,
What is the difference between using TBLRD and FSR0,FSR1.
Can anyone explain to me how data memory read and program memory read.
When TBLRD is done where does data is read from exactly.
I want to use PIC18f452 for my application.
Thanks,
Kalyan

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Discussion Groups | Piclist | Difference between FSR0 read and TBLRD

Difference between FSR0 read and TBLRD - kalyanramuv - Mar 12 16:00:00 2004

Re: Difference between FSR0 read and TBLRD - Eirik Karlsen - Mar 12 16:38:00 2004