XML CO527 Anonymous Questions and Answers Keyword Index

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Keyword reference for sram

Question 11 (2014):

Submission reference: IN3442

This might be a silly question, but if SRAM is only accessible in 8-bit chunks but has a 16-bit address space, how do you access an address beyond 2^8?

Answer 11:

The relation here is that SRAM is 16-bit (addresses) times 8-bits (=1 byte, each addressable unit). So, although the address you read-from or write-to is given as a 16-bit value (0x0000 through 0x08ff on the ATMega328) what data is read or written is only 8-bits.

Keywords: sram , avr