Difference between revisions of "83Plus:Ports:22"
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| + | [[Category:83Plus:Ports:By_Address|22 - Flash Lower Limit]] | ||
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== Synopsis == | == Synopsis == | ||
'''Port Number:''' 22h | '''Port Number:''' 22h | ||
Revision as of 09:59, 28 March 2005
Synopsis
Port Number: 22h
Function: Flash Execution Lower Limit
This port controls the first of two flash page execution limits.
Read Values
- [00h - FFh]: Flash Pages at or below this value have execution permission. This is always set to 08 in TIOS.
Write Values
- [00h - FFh]: The new execution limit. You must enable flash access through port 14 first.
Comments
This port does not exist on the standard 83 Plus. See ports 5 and 16 instead. Execution of code from a page above this port's value and below the value in Port 23 will cause the calculator to reset.
