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參數(shù)資料
| 型號： | LM1253A |
| 廠商： | National Semiconductor Corporation |
| 英文描述： | Monolithic Triple 180 MHz I2C CRT Pre-amp With Integrated Analog On Screen Display (OSD) Generator |
| 中文描述： | 單片三180兆赫的I2C顯像管預(yù)先集成在屏幕顯示（OSD）發(fā)生器模擬放大器 |
| 文件頁數(shù)： | 31/57頁 |
| 文件大?。?/td> | 1621K |
| 代理商： | LM1253A |
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Pre-Amp Interface Registers
(Continued)
TABLE 6. Pre-Amp Interface Registers
LM1253A Pre-Amp Interface Registers
Default
D7
60h
X
60h
X
60h
X
60h
X
80h
80h
80h
80h
94h
PEDESTAL[2:0]
00h
X
16h
X
00h
X
AID
Register
Address
8430
8431
8432
8433
8434
8435
8436
8437
8438
8439
843E
843F
D6
D5
D4
D3
D2
D1
D0
BGAINCTRL
GGAINCTRL
RGAINCTRL
CONTRCTRL
BBIASCTRL
GBIASCTRL
RBIASCTRL
BRIGHTCTRL
DCOFFSET
GLOBALCTRL
PLLFREQRNG
SRTSTCTRL
BGAIN[6:0]
GGAIN[6:0]
RGAIN[6:0]
CONTRAST[6:0]
BBIAS[7:0]
GBIAS[7:0]
RBIAS[7:0]
BRIGHTNESS[7:0]
OSD CONT[1:0]
X
IVIGAIN[1:0]
X
X
DC OFFSET[2:0]
PS
X
X
X
X
X
X
X
X
X
PFR[1:0]
X
SRST
Note:
Set Reserved bits to 0.
Two-Color Attribute Table
TABLE 7. Two-Color Attribute Registers
LM1253A Two-Color Attribute Registers
D6
D5
Register
ATT2C0n
Address
8440 +
(n*4)
+1
+2
+3
D7
D4
D3
D2
D1
D0
C1B[1:0]
C1G[2:0]
C1R[2:0]
ATT2C1n
ATT2C2n
ATT2C3n
C2B[0]
X
X
C2G[2:0]
C2R[2:0]
C1B[2]
X
X
EF[3:0]
C2B[2:1]
X
X
X
X
X
X
Note:
Set Reserved bits to 0.
Two-color display characterAttribute Table. The attributes for two-color display characters may be written or read via the following
address format:
A15–A6: Always 1000_0100_01b.
A5–A2: Attribute code (0h-Fh are valid values), n
A1–A0: Determines which of the 3 bytes is to be accessed.
NOTE: In the table, n indicates the attribute number 0
<
=n
<
=15
NOTE: When writing, bytes 0 through 2 must be written, in that order. Bytes 0 through 2 will take effect after byte 2 is written.
Since byte 3 contains all reserved bits, this byte may be written, but no effect will result.
When reading, it is OK to read only one, two, or all three bytes.
If writing more than one 2-color attributes using the auto increment feature, all four bytes must be written.
Four-Color Attribute Table
TABLE 8. Four-Color Attribute Registers
LM1253A Four-Color Attribute Registers
D6
D5
C1B[1:0]
Register
ATT4C0n
Address
8500 +
(n*8)
+1
+2
D7
D4
D3
D2
D1
D0
C1G[2:0]
C1R[2:0]
ATT4C1n
ATT4C2n
C2B[0]
X
C2G[2:0]
C2R[2:0]
C1B[2]
X
EF[3:0]
C2B[2:1]
L
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