Difference between revisions of "83Plus:Ports:85"
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'''Function:''' USB Read-Pipe Events | '''Function:''' USB Read-Pipe Events | ||
| − | This port reports when a USB transaction on a "read" pipe has finished. This port hypothetically hold the values for ports A8h-AFh. | + | This port reports when a USB transaction on a "read" pipe has finished. This port hypothetically hold the values for ports A8h-AFh. Similar to [[83Plus:Ports:84|port 84]]. |
{{84P-Only Port|05}} | {{84P-Only Port|05}} | ||
Revision as of 20:53, 8 December 2010
Synopsis
Port Number: 85h
Function: USB Read-Pipe Events
This port reports when a USB transaction on a "read" pipe has finished. This port hypothetically hold the values for ports A8h-AFh. Similar to port 84.
| This port only exists on the the TI-84 Plus and the TI-84 Plus Silver Edition. On the standard TI-83 Plus, it acts as a shadow of port 05. On the TI-83 Plus Silver Edition, this port has no effect. |
Read Values
Reading from this port also clears it. Remember the value you read, because you can't go back and read it again.
- Bit 0: Hypothetically, set if a read transaction has finished on pipe 8.
- Bit 1: Hypothetically, set if a read transaction has finished on pipe 9.
- Bit 2: Hypothetically, set if a read transaction has finished on pipe A.
- Bit 3: Hypothetically, set if a read transaction has finished on pipe B.
- Bit 4: Hypothetically, set if a read transaction has finished on pipe C.
- Bit 5: Hypothetically, set if a read transaction has finished on pipe D.
- Bit 6: Hypothetically, set if a read transaction has finished on pipe E.
- Bit 7: Hypothetically, set if a read transaction has finished on pipe F.
Write Values
- No effect
Comments
See port 84. I'm not sure anything on this page has actually been tested, but it should be true.
