TABLE 13. Enhanced Feature Descriptions (Continued)

Bits 21–18

Feature Description

0011b

Bordering

0100b

RESERVED

0101b

RESERVED

0110b

RESERVED

0111b

RESERVED

1000b

Raised Box

1001b

Blinking and Raised Box

1010b

Depressed Box

1011b

Blinking and Depressed Box

1100b

Heavy Raised Box

1101b

Blinking and Heavy Raised Box

1110b

Heavy Depressed Box

1111b

Blinking and Heavy Depressed Box

Four Color Attribute Format

Register Names (addresses):

63

62

61

60

59

58

57

56

55

54

53

52

51

50

49

48

RSV

RSV

RSV

RSV

RSV

RSV

RSV

RSV

RSV

RSV

RSV

RSV

RSV

RSV

C4B2

C4B1

47

46

45

44

43

42

41

40

39

38

37

36

35

34

33

32

C4B0

C4G2 C4G1 C4G0

C4R2

C4R1

C4R0

C3B2

C3B1

C3B0

C3G2 C3G1 C3G0

C3R2

C3R1

C3R0

31

30

29

28

27

26

25

24

23

22

21

20

19

18

17

16

RSV

RSV

RSV

RSV

RSV

RSV

RSV

RSV

RSV

RSV

EFB3

EFB2

EFB1

EFB0

C2B2

C2B1

15

14

13

12

11

10

987654321

0

C2B0

C2G2 C2G1 C2G0

C2R2

C2R1

C2R0

C1B2

C1B1

C1B0

C1G2 C1G1 C1G0

C1R2

C1R1

C1R0

Bits 8–0

These nine bits determine the color1 which is displayed when the corresponding OSD pixel code is 00b.

Bits 17–9

These nine bits determine the color2 which is displayed when the corresponding OSD pixel code is a 01b.

Bits 21–18

These are the enhanced feature (EF) bits which determine which feature is applied to the displayed character.

The features and their corresponding codes are shown in Table 14.

Bits 31–22

Reserved and should be set to zero.

Bits 40–32

These nine bits determine the color3 which is displayed when the corresponding OSD pixel code is a 10b.

Bits 49–41

These nine bits determine the color4 which is displayed when the corresponding OSD pixel code is an 11b.

Bits 63–50

Reserved and should be set to zero.

TABLE 14. Attribute Tables and Corresponding Addresses

Attribute Value (n)

Two-Color Attribute Table Address

Four-Color Attribute Table Address

0000b

0x8440–0x8443

0x8500–0x8507

0001b

0x8444–0x8447

0x8508–0x850F

0010b

0x8448–0x844B

0x8510–0x8517

0011b

0x844C–0x844F

0x8518–0x851F

0100b

0x8450–0x8453

0x8520–0x8527

0101b

0x8454–0x8457

0x8528–0x852F

0110b

0x8458–0x845B

0x8530–0x8537

0111b

0x845C–0x845F

0x8538–0x853F

1000b

0x8460–0x8463

0x8540–0x8547

1001b

0x8464–0x8467

0x8548–0x854F

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