CS7666

DS302PP1

25

Blue Saturation Register (0Bh)

BS[7:0]

The Blue Saturation register value controls the amplitude of the B-Y chrominance signal. When

the register value is 00h, the amplitude of the B-Y is minimized; when the register value is FFh,

the amplitude of the B-Y is maximized.

Gamma Correction Register (0Ch)

Writing to the gamma register (0Ch) selects the R, G, and/or B ram. Continuing data writes without sending a stop

bit after the register write results in writes to the ram locations starting with 00h and continuing to FFh. Reads from

register 0Ch function in a similar way. NOTE: All three gamma rams may be selected for simultaneous writes, but

read should be done one ram table at a time.

GC0

Logic “1” selects BLUE gamma ram for subsequent access.

GC1

Logic “1” selects GREEN gamma ram for subsequent ram access.

GC2

Logic “1” selects RED gamma ram for subsequent ram access.

GC[0:7]

Provide R/W access to ram after gamma ram table has been selected.

Test Control A Register (0Eh)

This register is reserved

Test Control B Register (0Fh)

This register is reserved.

YR Coefficient Register (10h)

Color separation and color space conversion coefficient.

CrR Coefficient Register (11h)

Color separation and color space conversion coefficient.

76543210

BS7

BS6

BS5

BS4

BS3

BS2

BS1

BS0

R/W

76543210

GC7

GC6

GC5

GC4

GC3

GC2

GC1

GC0

R/W

76

54

32

10

YR7

YR6

YR5

YR4

YR3

YR2

YR1

YR0

R/W

76

54

32

10

CrR7

CrR6

CrR5

CrR4

CrR3

CrR2

CrR1

CrR0

R/W