Display Control Unit (DCU)
MPC5606S Microcontroller Reference Manual, Rev. 7
Freescale Semiconductor 435
Figure 12-78. Safety mode with tag bit high
5. Layer 0 and 1 (i.e., safety layer) in safety mode does not supports blending or luminance offset.
12.7.2 Features
• SC support area modes mentioned in Table 12-64
• Supports calculation of CRC on the pixel value only
• CRC is calculated with the initial value as 32’h000000000
• CRC does not support:
– Any modification of input bytes
– Any modification of the output CRC value before reporting.
• When PDI is enabled with the Layer 0 and 1 (safety enabled) in a single sector, then PDI would act
as BG layer and Layer 0 as a FG Layer.CRC would be calculated over a single L0 Layer.
Table 12-64. Supported Area
Area Tag Value Note
Full 0 StartX = 0
StartY = 0
LenX = Screen Size
LenY = Screen Height
area of interest
CRC Layer (Intersection of both
area of interest and Safety Layer)
Safety Layers/Tag
Note: Enable to CRC is sent for the
dark pink Portion