PXD20RM Datasheet, PDF (492/1628 Pages) Freescale Semiconductor, Inc – PXD20 Microcontroller

Table 12-17. DCU_MODE field descriptions (continued)
Field
Description
PDI_EN
Enables the PDI
1’b1: Enabled
1’b0: Disabled
PDI_BYTE_REV
Controls the byte ordering in Narrow Mode
1’b0:LSB is followed by MSB data
1’b1:MSB is followed by LSB data
PDI_DE_MODE
Enables the PDI data Enable Mode. Here Data Enable is treated as an input.
1’b0: Value on data Enable signal is ignored
1’b1: Data enable signal must be present in incoming stream
PDI_NARROW_MO Enables the PDI Narrow Mode (refer to Section 12.8.1.5, Normal and Narrow Mode)
DE
1’b0: Narrow Mode is Disabled
1’b1: Narrow Mode is Enabled
PDI_MODE
Defines the different modes in which PDI is operating
2’b00: 8 bit monochrome data input
2’b01: 16 bit RGB 565 format
2’b10:18 bit RGB 666 data format.
2’b11:YCbCr data in 4:2:2 format.
PDI_SLAVE_MODE Enables PDI slave Mode
1’b0:Disabled
1’b1:Enabled
TAG_EN
Enables the calculation of CRC only on the safety layers
1’b0: CRC calculated over the whole area of interest (area of interest given by SIG_DESC
registers)
1’b1: calculates CRC only on safety enabled layers
SIG_EN
Enables the signature calculator block
1’b0: signature calculator is disabled
1’b1: signature calculator is enabled
PDI_SYNC
Decides whether the camera data needs external or internal synchronization.
1’b0: External Synchronization. The PDI receives the SYNC (HSYNC, VSYNC) signals from
external source.
1’b1: Internal Synchronization. PDI extracts the SYNC information from the digital data.
Note: YCbCr Mode supports Internal Sync only. Therefore, when PDI_MODE = 3, PDI_SYNC
must be set to 0.
EN_GAMMA
Enables/Disables the Gamma Correction
1’b0: Gamma correction is disabled
1’b1: Gamma Correction is enabled
DCU_MODE
DCULite operating mode
2’b00: DCULite off (pixel clock active if enabled by I/O)
2’b01: Normal mode. Panel content controlled by layer configuration.
2’b10: Test mode. DCULite disables all DMA fetches and all the pixels of an enabled layer take
the value in the CLUT RAM selected by the respective LUOFFS field of control descriptor 4.
2’b11: Color bar generation. Panel content controlled by color bar registers.
12.3.4.13 BGND Register
Figure 12-16 represents the BGND register.
12-30
PXD20 Microcontroller Reference Manual, Rev. 1
Preliminary—Subject to Change Without Notice
Freescale Semiconductor