Datasheet

SAM9G45 [DATASHEET]
Atmel-6438O-ATARM-SAM9G45-Datasheet_08-Dec-15
1096
 LINEVAL is the vertical size of the display in pixels, minus 1, as programmed in the LINEVAL field of the
LCDFRMCFG register of the LCD Controller.
Note: X_size is calculated as an up-rounding of a division by 32. (This can also be done adding 31 to the dividend before
using an integer division by 32). When using the 2D-addressing mode (see “2D Memory Addressing” on page 1116), it
is important to note that the above calculation must be executed and the FRMSIZE field programmed with every
movement of the displaying window, since a change in the PIXELOFF field can change the resulting FRMSIZE value.
44.6.1.4 Channel-L
This block has the same functionality as Channel-U, but for the Lower Panel in dual scan mode only.
44.6.1.5 Control
This block receives the request signals from the LCDC core and generates the requests for the channels.
44.6.2 LCD Controller Core
44.6.2.1 Configuration Block
The configuration block is a set of programmable registers that are used to configure the LCDC core operation.
These registers are written via the AHB slave interface. Only word access is allowed.
The description of the configuration registers can be found in “LCD Controller (LCDC) User Interface” on page
1118.
44.6.2.2 Datapath
The datapath block contains five submodules: FIFO, Serializer, Palette, Dithering and Shifter. The structure of the
datapath is shown in Figure 44-2.