View source for 84PCE:Ports:B000 Unknowns

[[Category:84PCE:Ports:By_Address|B000 Unknowns]] [[Category:84PCE:Ports:By_Name|B000 Unknowns]] [[Category:84PCE:Ports:Unknown|B000 Unknowns]]

{|-
|<u>Port</u>&nbsp;&nbsp;&nbsp;
|<u>Default</u>&nbsp;&nbsp;&nbsp;
|<u>Bits</u>&nbsp;&nbsp;&nbsp;
|<u>Information</u>&nbsp;&nbsp;&nbsp;
|-
|[[:84PCE:Ports:B000|B000]]
|64
|??
|Value seems fixed
|-
|[[:84PCE:Ports:B001|B001]]
|64
|??
|Value seems fixed
|-
|[[:84PCE:Ports:B002|B002]]
|61
|??
|Value seems fixed
|-
|[[:84PCE:Ports:B003|B003]]
|4C
|??
|Value seems fixed
|-
|[[:84PCE:Ports:B004|B004]]
|00
|FF
|Ports B004-B007 latch value written
|-
|B008
|
|
|''Ports B008-B00B always read 0''
|-
|[[:84PCE:Ports:B00C|B00C]]
|00
|77
|Writing FF latches to 63, though you can manually write 67.
|-
|[[:84PCE:Ports:B00D|B00D]]
|00
|FF
|Ports B00D-B00F latch value written
|-
|B010
|
|
|''Ports B010-B013 always read 0''
|-
|[[:84PCE:Ports:B014|B014]]
|00
|FF
|Ports B014-B01B latch value written
|-
|B01C
|
|
|''Ports B01C-B01F always read 0''
|-
|[[:84PCE:Ports:B020|B020]]
|FF
|FF
|Some kind of PWM scaler? BL goes to full-bright if less than [[:84PCE:Ports:B024|B024]]. If less than FF, BL gets dimmer.
|-
|[[:84PCE:Ports:B021|B021]]
|00
|FF
|BL goes to full-bright if not zero
|-
|[[:84PCE:Ports:B022|B022]]
|00
|0F
|BL goes to full-bright if not zero, returns to normal after about 1 second when reset to zero
|-
|B023
|00
|??
|Always zero
|-
|[[:84PCE:Ports:B025|B025]]
|00
|FF
|BL goes to full-bright if not zero
|-
|[[:84PCE:Ports:B026|B026]]
|00
|0F
|BL goes to full-bright if not zero
|-
|}