I

Slave Address

hex 8C/8D

MSB

LSB

1

000

110

R/W

Address Mapping (write mode)

x = don’t care bits, not used for the decoding of the subaddress.

Subaddress

Data Bits

Binary

Hex

MSB

LSB

xxxxx000

x0 or x8

TEST_MODE

VERTICAL

OVERSIZE

BLANKING 2

VERTICAL

OVERSIZE

BLANKING 1

S_CORRECTION

xxxxx001

x1 or x9

V_AMPLITUDE

xxxxx010

x2 or xA

TEST_MODE

SUB_TITLE

V_DC

xxxxx011

x3 or xB

HORIZONTAL

OVERSIZE

BLANKING 2

HORIZONTAL

OVERSIZE

BLANKING 1

EW_AMPLITUDE

xxxxx100

x4 or xC

EW_SHAPE

xxxxx101

x5 or xD

EW_LOW

EW_TILT

xxxxx110

x6 or xE

TEST_MODE

H_WIDTH

Subaddress 0 (hex 00) : Vertical Oversize Blanking & S_CORRECTION

MSB

LSB

TEST _MODE

OV_BLK_VERT2

OV_BLK_VERT1

S3

S2

S1

S0

TEST_MODE

: 0

: Normal operations

1

: Reserved for SGS-THOMSON test

OV_BLK_VERT1,

OV_BLK_VERT2

: Vertical oversize blanking (register SUB_TITLE in subadress X2 or XA)

(see Table 1)

Table 1

TV Mode

Sent

Frequency

(via VRET)

OV_BLK_VERT

2

OV_BLK_VERT

1

SUB_TITLE

Start

of Blanking

(middle of line)

End

of Blanking

(middle of line)

STANDARD 4 :3

50Hz

60Hz

0

0

0

No Blanking

SUBTITLE

50Hz

60Hz

Don’t Care

Don’t Care

1

302

259

67

59

ZOOM1

50Hz

60Hz

01

0

285

239

49

43

ZOOM2

50Hz

60Hz

11

0

278

234

59

49

BLANK

50Hz

60Hz

1

0

0

Full Blanking

S1, S2, S3, S4 : S-CORRECTION

0000 (hex 00) : Maximal S-CORRECTION

1111 (hex 0F) : Minimal S-CORRECTION (vertical sawtooth flat)

STV2145

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