CIP3250A datasheet(23/44 Pages) MICRONAS

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ADVANCE INFORMATION

CIP 3250A

Micronas

Table 2–10: I2C-Bus operation, continued

Sub-

Address

(decimal)

Label

Bit No.

(LSB = 0)

Typical

Operation

Value

Function

I2C registers for ADJUSTABLE LOWPASS FILTER

LPFLUM

7–0

Y luma low pass filter selection

0 = bypass

128 = Y1 (<06>CYLUM1=0, <06>CYLUM2=0,

increment <16>YDEL by 1)

192 = Y2 (<06>CYLUM1=0, <06>CYLUM2=0,

increment <16>YDEL by 1)

224 = Y3 (<06>CYLUM1=0, <06>CYLUM2=0,

increment <16>YDEL by 2)

240 = Y4 (<06>CYLUM1=0, <06>CYLUM2=0,

increment <16>YDEL by 2)

241 = Y5 (<06>CYLUM1=0, <06>CYLUM2=0,

increment <16>YDEL by 2)

249 = Y6 (<06>CYLUM1=0, <06>CYLUM2=0,

increment <16>YDEL by 2)

255 = Y7 (<06>CYLUM1=0, <06>CYLUM2=0,

increment <16>YDEL by 2)

[note: <16>YDEL has to be incremented to match group delays]

CYLUM1

Y (luma) low pass filter offset correction 1

0 = off

1 = on

CYLUM2

Y (luma) low pass filter offset correction 2

0 = off

1 = on

LPFCHR

6–0

UV (chroma) low pass filter selection

0 = bypass

96 = UV1 (<06>CYCHR1=0, <06>CYCHR2=0)

97 = UV2 (<06>CYCHR1=0, <06>CYCHR2=0)

113 = UV3 (<06>CYCHR1=0, <06>CYCHR2=0)

125 = UV4 (<06>CYCHR1=0, <06>CYCHR2=0)

127 = UV5 (<06>CYCHR1=0, <06>CYCHR2=0)

CYCHR1

UV (chroma) low pass filter offset correction 1

0 = off

1 = on

CYCHR2

UV (chroma) low pass filter offset correction 2

0 = off

1 = on

I2C registers for DELAY2 (DL2)

PXSKWON

pixel skew correction (see section 2.5.)

0 = off

[note: delay adapted every field, see Fig. 2–15]

1 = on

[note: delay adapted every line, see Fig. 2–14]

DL2

7–0

delay adjust for RGB to YUV-path (see section 2.5.)

(0...255)*2 + 2 clocks delay to write DL2–FIFO if <17>PXSKWON = 1

(48...212) clocks delay to read DL2–FIFO if <17>PXSKWON = 0

I2C registers for DELAY1 (DL1)

SECAM

delay of digital YUVin (SECAM mode)

0 = see <10>DL1ON

1 = UV: 2 clocks, Y: 76 clocks (set <10>DL1ON = 0)

DL1ON

delay of digital YUVin (set <10>SECAM = 0)

0 = 2 clocks

1 = 80 clocks

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