Difference between revisions of "84PCE:Ports:1002"
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(Created page with "1002 - Flash Wait States? Flash Wait States? == Synopsis == '''Port Number:''' 1002 '''Function:''' Possi...") |
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| − | [[Category:84PCE:Ports:By_Address|1002 - | + | [[Category:84PCE:Ports:By_Address|1002 - Unknown]] [[Category:84PCE:Ports:By_Name|Unknown port 1005]] |
== Synopsis == | == Synopsis == | ||
'''Port Number:''' 1002 | '''Port Number:''' 1002 | ||
| − | '''Function:''' | + | '''Function:''' Unknown. This port definitely doesn't control RAM or flash wait states. |
== Details == | == Details == | ||
=== Bits [2:0] === | === Bits [2:0] === | ||
| − | + | Some values cause an instant crash unless interrupts are disabled and you are running in a RAM program; if you are running in a RAM program with interrupts disabled, no values cause a crash. | |
{|- | {|- | ||
Revision as of 00:12, 3 April 2015
Contents
Synopsis
Port Number: 1002
Function: Unknown. This port definitely doesn't control RAM or flash wait states.
Details
Bits [2:0]
Some values cause an instant crash unless interrupts are disabled and you are running in a RAM program; if you are running in a RAM program with interrupts disabled, no values cause a crash.
| Value | Effect |
| 0 | Instant crash |
| 1 | Instant crash |
| 2 | Instant freeze |
| 3 | Crash upon return to OS |
| 4 | No crash, freezes if you do anything complicated in the OS |
| 5 | No crash, freezes if you do anything complicated in the OS |
| 6 | Normal value |
| 7 | No ill-effects apparent, does not appear to make OS noticeably slower |
Bits [7:3]
Writes have no apparent effect, value does not latch.
