ST6387 datasheet(52/84 Pages) STMICROELECTRONICS

52 / 84 page

52/84

ST6365, ST6375, ST6385 ST6367, ST6377, ST6387

ON-SCREEN DISPLAY (Cont’d)

Background Control Register (BCR)

Address 14h, Page 6 - Write only

Caution: This register contains at least one write

only bit. Single bit instructions (SET, RES, INC

and DEC) should not be used.

This register sets up two possible backgrounds.

The background select bit (BGS) in the format or

space character will determine which background

is selected for the current word.

R1,R0,G1,G0,B1,B0. Background Colour.These

bits define the colour of the specified background,

either background 1 or background 0 as defined in

table below.

BK1,BK0. Background Enable.These bits deter-

mine if the specified background is enabled or not.

“0” - The following word does not have a back-

ground.

“1” - There is a background around the following

word.

Table 19. Background Register Colour Setting

Character Bank Select Register (CBSR)

Address EDh, No Page - Write only

Reset Value: XXh

Caution: This register contains at least one write

only bit. Single bit instructions (SET, RES, INC

and DEC) should not be used.

D7-D1. These bits are not used

BS. Bank Select. This bit select the character bank

to be used. The lower bank is selected with 0. The

value can be modified only when the OSD is OFF

(GE=0). No reset value.

BK1

BK0

Colour

Black

Blue

Green

Cyan

Red

Magenta

Yellow

White

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