TMP88CS38 datasheet(160/226 Pages) TOSHIBA

160 / 226 page

TMP88CS38/CM38A/CP38A

2007-09-12

88CS38-160

(3) Fringing function

The fringing function is used to display a character with a fringe width is 1 dot

in a different color from that of the character. When a character is displayed with

the maximum of 18 vertical dots and 16 horizontal dots, the fringe exceeds right

and left, top, and bottom of the character display area. If there is an adjacent

character that outer dot is active, then this dot will overrule the fringe in the

horizontal direction. Underlines are not fringed.

Fringing is enabled for each line by setting EFR1 to EFR8 (OREFR8) and EFR9

to EFR12 (OREFR12) in the OSD control register to “1”.

A color for fringe is specified common to all lines using OSD control registers,

IFDT, RFDT, GFDT, and BFDT (Bit3 to 0 in ORBK).

Fringing specification unit: Line

Fringing enable register (1 bit

× 12) ... EFRn (n: 1 to 8) (OREFR8), EFRn (n: 9

to 12) (OREFR12)

“0”

......... Disable fringing

“1”

......... Enable fringing

Fringe colors: 8 or 15

Fringe color specification unit: Display page

Fringe color register (4 bits) .... IFDT, RFDT, GFDT, BFDT (Bit3 to 0 in ORBK)

I signal function select: PISEL (Bit6 in ORETC)

“0”

......... 15 colors specification

I pin can be used to make a half level of R, G, B signal

(Dark color) through an extra circuit.

“1”

......... 8 colors specification

Contents of IDT register is disregarded.

I pin can be used as half transparency/half tone

through an extra circuit.

Note:

The fringe of 1st column character does not exceed left, and the fringe of 32th

character does not exceed right.

TMP88CS38 Datasheet(PDF) 160 Page - Toshiba Semiconductor