Μsd Card Interface; Camera Concept - Nokia 6500 SLIDE RM-240 Service Manual

RM-240
System Module
Figure 23 SIM interface
The EM ASIC handles the detection of the SIM card. The detection method is based in the BSI line. Because of
the location of the SIM card, removing the battery causes a quick power down of the SIM IF.
The SIM interface supports both 1.8 V and 3.0 V SIM cards. The SIM interface voltage is first 1.8 V when the
SIM card is inserted, and if the card does not response to the ATR a 3 V interface voltage is used.
µSD card interface
The µSD card is connected to the engine by an external level shifter and ESD protection filter. Supplied
voltages:
• VMMC: 2.85 V (from level shifter)
• VIO: 1.8 V (from AVILMA)

Camera concept

This phone has a main camera module with 3.3 megapixel camera with Carl Ziess optics. The camera has
auto focus function in still mode. The auto focus is activated by pressing the dedicated camera button halfway
down (the auto focusing result will be indicated in the viewer).
The auto focus range is from approximately 0.1meter to infinity. The lens movement from one extreme to
the other is less than 0.5mm, which indicates that great care shall be taken when handling the main camera.
The camera is supported by a hardware accelerator (HWA - N3400) which also handles the camera flash
function (double LED flash diodes).
The secondary camera is used for video calling and is basically handled in a similar way to the main camera.
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