TABLE 11. OSD Control Register Detail (Continued)

Register

Address

Default

D7

D6

D5

D4

D3

D2

D1

D0

BBHLCTRLB1

0x8406

0x01

XXXXXXX

B[2]

BBLLCTRLB0

0x8407

0x00

B[1:0]

G[2:0]

R[2:0]

BBLLCTRLB1

0x8408

0x00

XXXXXXX

B[2]

CHSDWCTRLB0

0x8409

0x00

B[1:0]

G[2:0]

R[2:0]

CHSDWCTRLB1

0x840A

0x00

XXXXXXX

B[2]

ROMSIGCTRL

0x840D

0x00

XXXXXXX

CRS

ROMSIGDATAB0

0x840E

0x00

CRC[7:0]

ROMSIGDATAB1

0x840F

0x00

CRC[15:8]

HSTRT1

0x8410

0x62

HPOS[7:0]

VSTRT1

0x8411

0x32

VPOS[7:0]

W1STRTADRL

0x8412

0x00

ADDR[7:0]

W1STRTADRH

0x8413

0x00

XXXXXXX

ADDR[8]

COLWIDTH1B0

0x8414

0x00

COL[7:0]

COLWIDTH1B1

0x8415

0x00

COL[15:8]

COLWIDTH1B2

0x8416

0x00

COL[23:16]

COLWIDTH1B3

0x8417

0x00

COL[31:24]

HSTRT2

0x8418

0x56

HPOS[7:0]

VSTRT2

0x8419

0x5B

VPOS[7:0]

W2STRTADRL

0x841A

0x00

ADDR[7:0]

W2STRTADRH

0x841B

0x01

XXXXXXX

ADDR[8]

COLWIDTH2B0

0x841C

0x00

COL[7:0]

COLWIDTH2B1

0x841D

0x00

COL[15:8]

COLWIDTH2B2

0x841E

0x00

COL[23:16]

COLWIDTH2B3

0x841F

0x00

COL[31:24]

Any registers in the range of 0x8420 - 0x8428 are for National Semiconductor internal use only and should not be written to under

application conditions.

FADE_INTVL

0x8429

0x35

V_INTVL[3:0]

H_INVTVL[3:0]

PREAMPLIFIER CONTROL

These registers, shown in Table 12, control the gains, DAC outputs, PLL, horizontal and vertical blanking, OSD contrast and DC

offset of the video outputs. Additional register detail is provided in the Control Register Definitions Section, later in this document.

TABLE 12. LM1236 Preamplifier Interface Registers

Register

Address

Default

D7

D6

D5

D4

D3

D2

D1

D0

BGAINCTRL

0x8430

0x60

X

BGAIN[6:0]

GGAINCTRL

0x8431

0x60

X

GGAIN[6:0]

RGAINCTRL

0x8432

0x60

X

RGAIN[6:0]

CONTRCTRL

0x8433

0x60

X

CONTRAST[6:0]

DAC1CTRL

0x8434

0x80

DAC1[7:0]

DAC2CTRL

0x8435

0x80

DAC2[7:0]

DAC3CTRL

0x8436

0x80

DAC3[7:0]

DAC4CTRL

0x8437

0x80

DAC4[7:0]

DACOSDDCOFF

0x8438

0x14

X

DCF[1:0]

OSD CONT[1:0]

DC OFFSET[2:0]

GLOBALCTRL

0x8439

0x02

XXXXXX

PS

BV

AUXCTRL

0x843A

0x03

X

HB_POS[3:0]

HBPOS

_EN

RSV

HBD

PLLFREQRNG

0x843E

0x06

X

PLL_

AUTO

CLMP

X

OOR

VBL

PFR[1:0]

SRTSTCTRL

0x843F

0x00

X

AID

X

X

X

X

SRST

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