Bb Block Diagram - Nokia RM-761 Service Manual

RM-761; RM-799; RM-800
System Module

BB block diagram

Figure 48 Quantum block diagram
Display
Quantum includes a 320x240, 16bit color display. The display interface has two supply voltages: 2.8V for LCD
controller and 1.8V for LCD controller I/O. The display interface is driven by the DIF (Display Interface) of the
X-GOLD213. For more details on the DIF please consult the X-GOLD213 spec.
Camera
The Camera is interfaces to the XGold213 trough a de-serializer chip, which converts from the CCP2 serial
data/clock from the camera to the 8 bit parallel interface on the XG213.
MMC/SD-card
The MMCI interface of XGold213 is used for external data storage on a SD card. The interface supports up to
52MHz clock rate, giving a peak data bandwidth of 200Mb/s.
Backlight
The LCD backlight is designed around an integrated step-up converter in X-GOLD213, which enables high
voltage generation for the serially connected LED's in the LCD.
The current trough the LCD backlight LED's is sensed by a resistor and can be controlled by an XGOLD213
register.
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