FLY E185
Service Manual
Figure 3.3.3-2 Charging circuit
3.4 Principle of Baseband circuit
3.4.1 Whole introduction of baseband circuit
Figure 3.4.1
MT6236 Function Block Diagram
3.4.2 Memory Management
To provide the greatest capacity for expansion and maximum bandwidth for data intensive
applications such as multimedia features, MT6236 supports up to 3 external memory devices
through 16-bit host interface. High performance devices such as Mobile DDR SDRAM and
Cellular RAM are supported for maximum bandwidth. Traditional devices such as burst flash
and Pseudo SRAM are also supported. For greatest compatibility, the memory interface can also
be used to connect to legacy devices such as Color/Parallel LCD, and multimedia companion
chips are all supported through this interface. To minimize power consumption and ensure low
noise, this interface is designed for flexible I/O voltage and allows lowering of the supply voltage
down to 1.8V.The driving strength is configurable for signal integrity adjustment. The data bus
also employs retention technology to prevent the bus from floating during a turn over.
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