AL128 datasheet(13/45 Pages) ETC

13 / 45 page

AL128

April 2, 1999

6.1.1 24-bit RGB

The digital 24-bit RGB can be pin-to-pin wired to RED<7:0>, GREEN<7:0> and BLUE<7:0> of

the AL128.

6.1.2 VAFC

The VAFC format (16-bit, RGB565, in 64k high color) carries red signals in D15~D11, green

signals in D10~D5, and blue signals in D4~D0.

There are two ways to implement VAFC interface. The first way is to set INTYPE as 11 to

accept VAFC format, then input the 16-bit RGB565 (64k high color) to GREEN<7:0> and

BLUE<7:0> of the AL128 as follows:

The other way is to keep INTYPE setting as 00 to accept 24-bit RGB888, but connect the inputs

to the higher bits of RED<7:0>, GREEN<7:0> and BLUE<7:0> of the AL128 as follows. The

unused pins can be grounded.

D15

RED 7

D14

RED 6

D13

RED 5

D12

RED 4

D11

RED 3

D10

GREEN 7

BLUE 7

GREEN 6

GREEN 5

GREEN 4

GREEN 3

GREEN 2

BLUE 6

BLUE 5

BLUE 4

BLUE 3

D15

D14

D13

D12

D11

D10

GREEN 7

GREEN 6

GREEN 5

GREEN 4

GREEN 3

GREEN 2

GREEN 1

GREEN 0

BLUE 7

BLUE 6

BLUE 5

BLUE 4

BLUE 3

BLUE 2

BLUE 1

BLUE 0

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