Display - Nokia RM-555 Service Manual

RM-555
System Module and User Interface
Figure 77 Touch screen controller

Display

Rapido has an external display buffer with 8Mbit display RAM. The input interfaces for display buffer are
ViSSI-12 for image data and LoSSI for commands.
The data interface between display buffer and display is CDP (Compact Display Port), display commands are
sent by LoSSI interface. The display backlight control is controlled by the display.
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