Difference between revisions of "83Plus:Ports:22"
From WikiTI
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[[Category:83Plus:Ports:By_Address:Protected|22 - Flash Lower Limit]] [[Category:83Plus:Ports:By_Address|22 - Flash Lower Limit]] [[Category:83Plus:Ports:By_Name|Flash Lower Limit]] | [[Category:83Plus:Ports:By_Address:Protected|22 - Flash Lower Limit]] [[Category:83Plus:Ports:By_Address|22 - Flash Lower Limit]] [[Category:83Plus:Ports:By_Name|Flash Lower Limit]] | ||
{{SE-Only Port|02}} | {{SE-Only Port|02}} | ||
| + | {{Protected Port}} | ||
== Synopsis == | == Synopsis == | ||
Revision as of 13:15, 30 March 2005
| This port only exists as a distinct port on the TI-83 Plus Silver Edition, the TI-84 Plus, and the TI-84 Plus Silver Edition. On the standard TI-83 Plus, it acts as a shadow of port 02. |
| This port is protected, which means user programs cannot ordinarily write to it directly. |
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.
