Multiplex Dual Display; Overview; Destination Control - Fujitsu MB86R02 Jade-D Hardware Manual

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MB86R02 'Jade-D' Hardware Manual V1.64

Multiplex Dual Display

Each display controller has the capability to drive two screens and is compatible with the units in the

Coral PA GDC.

Use an external demultiplexer to drive two display devices. This configuration can be applied for

display 0 and 1 in parallel.

controller 0/1

An internal demultiplexer can be used with display controller 0. The use of this unit can be enabled via

the dis2s bit in the VCCC register.

controller 0

Dual Display functionality is not possible with RSDS panels.

A layer or cursor can be included in both screens or one screen. If a layer is NOT included in a screen,

this layer is treated as "transparent". If all the bits of a screen are set to "0", then the background color

is displayed on the screen.

This destination control can be thought virtually as a crosspoint switch as shown below:

The MDen (multi display enable) bit of the MDC (multi display control) register enables this function.