LM1276 National Semiconductor Corporation, LM1276 Datasheet - Page 29

• Manufacturer Part Number: LM1276
• Description: 150 Mhz I2c Compatible Rgb Preamplifier With Internal 512 Character Osd Rom, 512 Character Ram And 4 Dacs
• Manufacturer: National Semiconductor Corporation

Register
BGAINCTRL
GGAINCTRL
RGAINCTRL
CONTRCTRL
DAC1CTRL
DAC2CTRL
DAC3CTRL
DAC4CTRL
DACOSDDCOFF
GLOBALCTRL
AUXCTRL1
AUXCTRL2
OSD_TRANSP
TONE
EMPHASIS
CENTF
ABLCTRL0
ABLCTRL1
ABLCTRL2
ABLCTRL3
PEAKCNTLTXT
HLCONTRTXT
PEAKCNTLPIC
HLCONTRPIC
PEAKCNTLMOV
HLCONTRTMOV
Register
H_FP0
H_FP1
HF_S0
HF_S1
H_BP0
H_BP1
V_FP0
V_FP1
V_SYN_D
LM1276 Address Map
TWO-COLOR ATTRIBUTE RAM
This RAM is identical to that of the LM1247. Please refer to the LM1247 datasheet for details.
FOUR-COLOR ATTRIBUTE RAM
This RAM is identical to that of the LM1247. Please refer to the LM1247 datasheet for details.
AUTO SIZE AND HI-BRITE REGISTERS
These registers, shown in Table 13 provide measured values for the Auto size function and control the Hi-Brite function.
Registers 0x8580 — 0x858A are compatible to the LM1246 Auto Size Registers. Reserved bits are for internal use and
should not be written to, and any value read should be ignored.
Address
Address
0x85CC
0x85CD
0x85CA
0x85CB
0x843A
0x843E
0x85C0
0x85C1
0x85C4
0x85C5
0x85C6
0x85C7
0x85C8
0x85C9
0x8430
0x8431
0x8432
0x8433
0x8434
0x8435
0x8436
0x8437
0x8438
0x8439
0x8580
0x8581
0x8582
0x8583
0x8584
0x8585
0x8586
0x8587
0x8588
Default
Default
0x7F
0x0F
0x0F
0x0F
0x0F
0xFF
0xFF
0xFF
0xFF
0xFF
0x60
0x60
0x60
0x60
0x80
0x80
0x80
0x80
0x24
0x00
0x03
0x06
0x80
0x30
0x60
0x03
0x60
0x03
0x60
0x07
0x03
0x07
0x07
TABLE 12. LM1276 Preamplifier Interface Registers
(Continued)
TABLE 13. LM1276 Auto Size Registers
RSV
RSV
RSV
RSV
RSV
D7
D7
X
X
X
X
DCF[1:0]
BI[7:6]
RSV
D6
D6
CENTF[3:0]
RSV
RSV
RSV
RSV
HB_POS[4:0]
29
BI_EN
CLMP
RSV
RSV
RSV
RSV
RSV
RSV
D5
D5
OSD CONT[2:0]
RSV
PLLCAL
CLMP
HILIGHT_CONTRAST[6:0]
HILIGHT_CONTRAST[6:0]
HILIGHT_CONTRAST[6:0]
SW
D4
D4
HFL_HS[7:0]
VSYNC[7:0]
DAC1[7:0]
DAC2[7:0]
DAC3[7:0]
DAC4[7:0]
HFP[7:0]
HBP[7:0]
VFP[7:0]
CONTRAST[6:0]
OSD TONE[6:0]
GGAIN[6:0]
RGAIN[6:0]
BGAIN[6:0]
OOR
RSV
D3
D3
HBPOS
RSV
_EN
VB2
D2
D2
ABL0[3:0]
ABL1[3:0]
ABL2[3:0]
ABL3[3:0]
MM_OVRSHT[2:0]
TM_OVRSHT[2:0]
PM_OVRSHT[2:0]
DC OFFSET[2:0]
RSV
HFP[10:8]
HBP[10:8]
VFP[10:8]
RSV
RSV
D1
PS
D1
HFL HS[9:8]
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HBD
RSV
D0
BV
D0