ICS1531 datasheet(48/76 Pages) ICST

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ICS1531 Rev N 12/1/99

December, 1999

Chapter 6

ICS1531 Data Sheet - Preliminary

6.5.33

The R_COARSE Register is the first adjustment for the red channel of the ADC. It is used to coarsely

adjust the analog signal used by the ADC. (See also Section 6.5.36, “Register 34h: R_FINE”.)

6.5.34

The G_COARSE Register is the first adjustment for the green channel of the ADC. It is used to coarsely

adjust the analog signal used by the ADC. (See also Section 6.5.37, “Register 35h: G_FINE”.)

Table 6-32.

R_COARSE Register

Bit

Bit Name

Bit Definition

Ac-

cess

Spec.

Func.

Re-

set

31:7-

31:6

Reserved

Reserved.

• See Section 6.1, “Reserved Bits”.

• These bits can be programmed to ‘0’.

––

31:5

Reserved

Reserved.

• See Section 6.1, “Reserved Bits”.

• This bit must be programmed to ‘1’.

––

31:4-

31:2

Reserved

Reserved.

• See Section 6.1, “Reserved Bits”.

• These bits can be programmed to ‘0’.

––

31:1-

31:0

R_Coarse_ADJ

[1-0]

Red Coarse (Gain) Adjust [1-0].

These bits adjust the red channel of the ADC by adjusting the

gain of the video amplifier for the analog signal used by the

ADC.

• 0 = The gain is 1.0 (default).

• 1 = The gain is 1.2.

• 2 = The gain is 1.4 (typical).

• 3 = The gain is 1.6.

R/W

–

Table 6-33.

G_COARSE Register

Bit

Bit Name

Bit Definition

Ac-

cess

Spec.

Func.

Re-

set

32:7-

32:6

Reserved

Reserved.

• See Section 6.1, “Reserved Bits”.

• These bits can be programmed to ‘0’.

––

32:5

Reserved

Reserved.

• See Section 6.1, “Reserved Bits”.

• This bit must be programmed to ‘1’.

––

32:4-

32:2

Reserved

Reserved.

• See Section 6.1, “Reserved Bits”.

• These bits can be programmed to ‘0’.

––

32:1-

32:0

G_Coarse_ADJ

[1-0]

Green Coarse (Gain) Adjust [1-0].

These bits adjust the green channel of the ADC by adjusting

the gain of the video amplifier for the analog signal used by the

ADC.

• 0 = The gain is 1.0 (default).

• 1 = The gain is 1.2.

• 2 = The gain is 1.4 (typical).

• 3 = The gain is 1.6.

R/W

–

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