Cursor; Cursor Display Function; Cursor Control; Display Scan Control - Fujitsu MB86R02 Jade-D Hardware Manual

Graphics controller

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MB86R02 'Jade-D' Hardware Manual V1.64

18.6.4 Cursor

The display controller can display two hardware cursors. Each cursor is specified as 64 × 64 pixels

and the cursor pattern is set in the Graphics Memory. The indirect color mode (8 bits/pixel) is used

and the L0 layer palette is used. However, transparent color control (handling of transparent color

code and code 0) is independent of L0 layer. Blending with lower layer is not performed.

The display priority for hardware cursors is programmable. The cursor can be displayed either on

upper or lower the L0 layer using this feature. A separate setting can be made for each hardware

cursor. If part of a hardware cursor crosses the display frame border, the part outside the border is not

Usually, cursor 0 is preferred to cursor 1. However, with cursor 1 displayed upper the L0 layer and

cursor 0 displayed lower the L0 layer, the cursor 1 display is preferred to the cursor 0.

The following table shows typical display resolutions and their synchronous signal frequencies. The

pixel clock frequency is determined by setting the division rate of the display reference clock. The

display reference clock is either the internal PLL (e.g. 533.3 MHz at input frequency of 25.0 MHz), or

the clock supplied to the DCLKI input pin. The following table gives the clock division rate used when

the internal PLL is the display reference clock:

Division rate

of reference

Pixel frequency = 25.0 MHz / 3 × 64 × reference clock division rate (when internal PLL selected)

= DCLKI input frequency × reference clock division rate (when DCLKI selected)

Horizontal frequency = Pixel frequency/Horizontal total pixel count

Vertical frequency = Horizontal frequency/Vertical total raster count

Use bit 14 of DCM1 to select additional pre-divider factor 4

Example of Resolution and Display Frequency

total raster