LCD Controller
MOTOROLA
MPC823e REFERENCE MANUAL
18-7
LCD CONTROLLER
18
The MPC823e LCD controller is a module that is separate from the core and communication
processor module. It uses the internal DMA, bus, and system interface unit to access frame
buffer memory. The LCD controller has dedicated registers that provide timing generation
to control the panel. It also has two FIFOs that interface to color RAM, which provides pixel
generation and a data path to the panel. The LCD controller block diagram is illustrated in
Figure 18-6.
Figure 18-6. LCD Controller Block Diagram
LCD
FIFOS
CONTROL
INTERFACE
DMA INTERFACE
TIMING GENERATION
MODES
FRAME
SHIFT
LOAD
LCD_AC
LCD DATA
DMA ADDRESS
COLOR
RAM
REGISTERS
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