Difference between revisions of "83Plus:Ports:0F"
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[[Category:83Plus:Ports:By_Address|0F - MemB High Flash Address]] [[Category:83Plus:Ports:By_Name|MemB High Flash Address]] | [[Category:83Plus:Ports:By_Address|0F - MemB High Flash Address]] [[Category:83Plus:Ports:By_Name|MemB High Flash Address]] | ||
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'''Port Numbers:''' 0Fh | '''Port Numbers:''' 0Fh | ||
| − | '''Function:''' This port contains the high two bits of addresses for memory mapped in [[83Plus:Ports:07|port 7]]. [[83Plus:Ports: | + | '''Function:''' This port contains the high two bits of addresses for memory mapped in [[83Plus:Ports:07|port 7]]. [[83Plus:Ports:0E|Port 0E]] is an identical port that works with [[83Plus:Ports:06|port 6]]. |
| + | See [[83Plus:Ports:0E|port 0E]] for comments. See also [[83Plus:Memory Mapping|Memory Mapping]]. | ||
=== Read Values === | === Read Values === | ||
Latest revision as of 20:30, 19 February 2013
Synopsis
Port Numbers: 0Fh
Function: This port contains the high two bits of addresses for memory mapped in port 7. Port 0E is an identical port that works with port 6.
See port 0E for comments. See also Memory Mapping.
Read Values
- Bits 0-1: Whatever was last written
- Bits 2-7: always 0
Write Values
- Bits 0-1: Set a new value
- Bit 2-7: No effect
