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参数资料
| 型号： | LM1247AAG/NA/NOPB |
| 厂商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分类： | 音频／视频放大 |
| 英文描述： | 3 CHANNEL, VIDEO PREAMPLIFIER, PDIP24 |
| 封装： | PLASTIC, DIP-24 |
| 文件页数： | 18/48页 |
| 文件大小： | 3141K |
| 代理商： | LM1247AAG/NA/NOPB |
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LM1247 Address Map (Continued)
END-OF-SCREEN CODE
To signify the end of the window, a special End-of-Screen (EOS) code is used in place of a End-of-Line (EOL) code. There must
be at least one EOS code in the Page RAM to avoid unpredictable behaviour. This can be accomplished by clearing the RAM by
writinga0tobit3ofthe FRMCTRL1 Register, 0x8400, immediately after power up.
TABLE 13. End-of-Screen Code
ATTRIBUTE CODE
END-OF-SCREEN CODE
ATT[3:0]
0000000
0
Bits 7-0 are all zeros. Bits 11-0 will have the previously entered AC but this is not used and so these bits are “don’t cares”.
OSD CONTROL REGISTERS
These registers, shown in Table 14, control the size, position, enhanced features and ROM bank selection of up to two
independent OSD windows. Any bits marked as “X” are reserved and should be written to with zeros and should be ignored when
the register is read. Additional register detail is provided in the Control Register Definitions Section, later in this document.
TABLE 14. OSD Control Register Detail
Register
Address
Default
D7
D6
D5
D4
D3
D2
D1
D0
FRMCTRL1
0x8400
0x10
X
TD
CDPR
D2E
D1E
OSE
FRMCTRL2
0x8401
0x80
PIXELS_PER_LINE[2:0]
BLINK_PERIOD[4:0]
CHARFONTACC
0x8402
0x00
XXXXXX
ATTR
FONT4
VBLANKDUR
0x8403
0x10
X
VBLANK_DURATION[6:0]
CHARHTCTRL
0x8404
0x51
CHAR_HEIGHT[7:0]
BBHLCTRLB0
0x8405
0xFF
B[1:0]
G[2:0]
R[2:0]
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
0x13
HPOS[7:0]
VSTRT1
0x8411
0x14
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 - 0x8426 are for National Semiconductor internal use only and should not be written to
under application conditions.
BANKSEL_0-1
0x8427
0x10
X
B1AD[2:0]
X
B0AD[2:0]
BANKSEL_2-3
0x8428
0x32
X
B3AD[2:0]
X
B2AD[2:0]
LM1247
www.national.com
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| LM1269NA/NOPB | 3 CHANNEL, VIDEO PREAMPLIFIER, PDIP24 |
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相关代理商/技术参数 |
参数描述 |
|---|---|
| LM1247DMC/NA | 制造商:Texas Instruments 功能描述: |
| LM124A | 制造商:NSC 制造商全称:National Semiconductor 功能描述:Low Power Quad Operational Amplifiers |
| LM124AD | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:LOW POWER QUAD OPERATIONAL AMPLIFIERS |
| LM124ADR | 制造商:TI 制造商全称:Texas Instruments 功能描述:QUADRUPLE OPERATIONAL AMPLIFIERS |
| LM124ADT | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Voltage-Feedback Operational Amplifier |
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