參數(shù)資料
型號： LM1236
廠商： National Semiconductor Corporation
英文描述： 150 MHz I2C Compatible RGB Preamplifier with Internal 254 Character OSD ROM, 512 Character RAM and 4 DACs
中文描述： 150 MHz的I2C兼容的RGB前置放大器254字符OSD光盤，512個字符RAM和4 DAC的內(nèi)置
文件頁數(shù)： 28/43頁
文件大小： 1898K
代理商： LM1236
LM1236 Address Map
(Continued)
TABLE 11. OSD Control Register Detail
(Continued)
Default
D7
D6
0x01
X
X
0x00
B[1:0]
0x00
X
X
0x00
B[1:0]
0x00
X
X
0x00
X
X
0x00
0x00
0x62
0x32
0x00
0x00
X
X
0x00
0x00
0x00
0x00
0x56
0x5B
0x00
0x01
X
X
0x00
0x00
0x00
0x00
Register
BBHLCTRLB1
BBLLCTRLB0
BBLLCTRLB1
CHSDWCTRLB0
CHSDWCTRLB1
ROMSIGCTRL
ROMSIGDATAB0
ROMSIGDATAB1
HSTRT1
VSTRT1
W1STRTADRL
W1STRTADRH
COLWIDTH1B0
COLWIDTH1B1
COLWIDTH1B2
COLWIDTH1B3
HSTRT2
VSTRT2
W2STRTADRL
W2STRTADRH
COLWIDTH2B0
COLWIDTH2B1
COLWIDTH2B2
COLWIDTH2B3
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]
Address
0x8406
0x8407
0x8408
0x8409
0x840A
0x840D
0x840E
0x840F
0x8410
0x8411
0x8412
0x8413
0x8414
0x8415
0x8416
0x8417
0x8418
0x8419
0x841A
0x841B
0x841C
0x841D
0x841E
0x841F
D5
X
D4
X
D3
X
D2
X
D1
X
D0
B[2]
G[2:0]
X
G[2:0]
X
X
R[2:0]
X
R[2:0]
X
X
X
X
X
B[2]
X
X
X
X
X
X
B[2]
CRS
CRC[7:0]
CRC[15:8]
HPOS[7:0]
VPOS[7:0]
ADDR[7:0]
X
COL[7:0]
COL[15:8]
COL[23:16]
COL[31:24]
HPOS[7:0]
VPOS[7:0]
ADDR[7:0]
X
COL[7:0]
COL[15:8]
COL[23:16]
COL[31:24]
X
X
X
X
ADDR[8]
X
X
X
X
ADDR[8]
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
BGAINCTRL
GGAINCTRL
RGAINCTRL
CONTRCTRL
DAC1CTRL
DAC2CTRL
DAC3CTRL
DAC4CTRL
DACOSDDCOFF
GLOBALCTRL
Address
0x8430
0x8431
0x8432
0x8433
0x8434
0x8435
0x8436
0x8437
0x8438
0x8439
Default
0x60
0x60
0x60
0x60
0x80
0x80
0x80
0x80
0x14
0x02
D7
X
X
X
X
D6
D5
D4
D3
D2
D1
D0
BGAIN[6:0]
GGAIN[6:0]
RGAIN[6:0]
CONTRAST[6:0]
DAC1[7:0]
DAC2[7:0]
DAC3[7:0]
DAC4[7:0]
OSD CONT[1:0]
X
X
X
DCF[1:0]
DC OFFSET[2:0]
PS
HBPOS
_EN
X
X
X
X
BV
AUXCTRL
0x843A
0x03
X
HB_POS[3:0]
RSV
HBD
PLLFREQRNG
0x843E
0x06
X
PLL_
AUTO
AID
CLMP
X
OOR
VBL
PFR[1:0]
SRTSTCTRL
0x843F
0x00
X
X
X
X
X
SRST
L
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