Difference between revisions of "84PCE:Ports:B020"

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[[Category:84PCE:Ports:By_Address|B020 - Backlight Control]] [[Category:84PCE:Ports:By_Name|Backlight Control]]
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[[Category:84PCE:Ports:By_Address|B020 - Backlight]] [[Category:84PCE:Ports:By_Name|Backlight]]
 
== Synopsis ==
 
== Synopsis ==
 
'''Port Number:''' B020-B026
 
'''Port Number:''' B020-B026
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'''Memory-mapped address:''' F60020-F60026
  
 
'''Function:''' Backlight Control
 
'''Function:''' Backlight Control
  
This range of ports controls the backlight. Port B024 controls the particular level. Other ports in this range affect the backlight, generally causing the backlight to go to full brightness.
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This range of ports controls the backlight. Ports in this range affect the backlight, generally causing the backlight to go to full brightness.
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{|-
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|<u>Port</u>&nbsp;&nbsp;&nbsp;
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|<u>Information</u>&nbsp;&nbsp;&nbsp;
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|-
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|B020
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|Unknown
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|-
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|B021
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|Unknown
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|-
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|B022
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|Unknown
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|-
 +
|-
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|B023
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|Unknown
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|-
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|B024
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|Backlight PWM level; controls the backlight PWM dimming level. 00 is full PWM duty cycle, FF is minimum duty cycle. When booting, this is set to FF, and later changed with the value in brightness.
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|-
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|B025
 +
|Unknown
 +
|-
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|B026
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|Unknown
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|-|[[:84PCE:Ports:0009|0009]]
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|}

Latest revision as of 12:05, 25 May 2016

Synopsis

Port Number: B020-B026

Memory-mapped address: F60020-F60026

Function: Backlight Control

This range of ports controls the backlight. Ports in this range affect the backlight, generally causing the backlight to go to full brightness.

Port    Information   
B020 Unknown
B021 Unknown
B022 Unknown
B023 Unknown
B024 Backlight PWM level; controls the backlight PWM dimming level. 00 is full PWM duty cycle, FF is minimum duty cycle. When booting, this is set to FF, and later changed with the value in brightness.
B025 Unknown
B026 Unknown