1997 Mar 03

8

Philips Semiconductors

Objective specification

Stand-alone OSD for monitor applications

PCB8517

Table 5

Column 30

Table 6

Explanation of Table 5

Note

1. When the display row is selected to be double width, only even column characters will be displayed on the screen

and the odd column characters will not appear.

Table 7

Column 31

Table 8

Explanation of Table 7

There are three control registers for each window. Window 1 occupies columns 0 to 2 of row 10, columns 3 to 5 of

row 10 are occupied by window 2 and columns 6 to 8 of row 10 are occupied by window 3. If window overlapping occurs,

the highest priority window will cover the lowest. Window 1 has the highest priority and window 3 the lowest.

Table 9

Columns 0, 3 and 6 of row 10

DATA BYTE

BIT 7

BIT 6

BIT 5

BIT 4

BIT 3

BIT 2

BIT 1

BIT 0

R0

G0

B0

R1

G1

B1

CHS

CWS

BIT

NAME

DESCRIPTION

7 to 5

R0, G0, B0

colour definition of colour 0

4 to 2

R1, G1, B1

colour definition of colour 1

1

CHS

This bit defines the height of the display character; when CHS = 1 double height is

selected.

0

CWS

selected.

DATA BYTE

BIT 7

BIT 6

BIT 5

BIT 4

BIT 3

BIT 2

BIT 1

BIT 0

R2

G2

B2

R3

G3

B3

reserved

BIT

NAME

DESCRIPTION

7 to 5

R2, G2, B2

colour definition of colour 2

4 to 2

R3, G3, B3

colour definition of colour 3

DATA BYTE

BIT 7

BIT 6

BIT 5

BIT 4

BIT 3

BIT 2

BIT 1

BIT 0

MSB

row start address

LSB

MSB

row end address

LSB