ST6387 datasheet(48/84 Pages) STMICROELECTRONICS

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ST6365, ST6375, ST6385 ST6367, ST6377, ST6387

ON-SCREEN DISPLAY (Cont’d)

Space Character Register (SCR)

See Data RAM table description for Specific Ad-

dress - Write only

Caution: This register contains at least one write

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

and DEC) should not be used.

D7. Not used.

D6. This pin is fixed to “1”.

R, G, B. Colour. The 3 colour control bits define

the foreground colour of the following word as

shown in table below.

Table 14. Space Character Register Colour

Setting

BGS. Background Select. The background select

bit selects the desired background colour for the

following word. There are two possible back-

grounds defined by the bits in the Background

Control Register.

“0” - The background on the following word is ena-

bled by BG0 and the colour is set by R0, G0, and

B0.

“1” -The background on the following word is ena-

bled by BG1 and the colour is set by R1,

G1, and B1.

WE. Word Enable. The word enable bit defines

whether or not the following word is displayed.

“0” - The word is not displayed.

“1” -If the global enable bit is one, then the word is

displayed.

HSE. Horizontal Space Enable. The horizontal

space enable bit determines the spacing between

words. The space between characters is always 0.

The alphanumeric character set is implemented in

a 5 x 7 format with one empty column to the right

and one empty row above and below so that the

space between alphanumeric characters will be

one dot.

“0” - The space between words is equal to the

width of the space character, which is 6 dots.

“1” - The space between words is defined by the

value in the horizontal space register plus the

width of the space character.

Format Character Register (FCR)

See Data RAM table description for Specific Ad-

dress - Write only

Caution: This register contains at least one write

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

and DEC) should not be used.

D7. This bit is not used

S. Character Size. The character size bit, along

with the global size bits (GS2 and GS1) located in

the horizontal space register, specify the character

size for each line as defined in Table 16.

R, G, B. Colour. The 3 colour control bits define

the foreground colour of the following word as

shown in Table 15.

BGS. Background Select. The background select

bit selects the desired background for the following

word. There are two possible backgrounds defined

by the bits in the Background Control Register.

“0” - The background on the following word is ena-

bled by BG0 and the colour is set by R0,

G0, and B0.

“1” - The background on the following word is ena-

bled by BG1 and the colour is set by R1,

G1, and B1.

WE. Word Enable. The word enable bit defines

whether or not the following word is displayed.

“0” - The word is not displayed.

“1” - If the global enable bit is one, then the word is

displayed.

VSE. Vertical Space Enable. The vertical space

enable bit determines the spacing between lines.

“0” - The space between lines is equal to 0H. The

alphanumeric character set is implemented

in a 5 x 7 format with one empty column to

the right and one empty row above and one

below and stored in a 6 x 9 format.

“1” - The space between lines is defined by the

value in the vertical space register.

-“1”

BGS

HSE

Colour

Black

Blue

Green

Cyan

Red

Magenta

Yellow

White

BGS

VSE

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