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參數(shù)資料
| 型號： | ADV7150LS170 |
| 廠商： | ANALOG DEVICES INC |
| 元件分類： | 顯示控制器 |
| 英文描述： | CMOS 220 MHz True-Color Graphics Triple 10-Bit Video RAM-DAC |
| 中文描述： | PALETTE-DAC DSPL CTLR, PQFP160 |
| 封裝： | POWER, PLASTIC, QFP-160 |
| 文件頁數(shù)： | 21/36頁 |
| 文件大?。?/td> | 447K |
| 代理商： | ADV7150LS170 |
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ADV7150
–21–
REV. A
Palette Select Match Bits Control (MR17–MR16)
T hese bits allow multiple palette devices to work together.
When bits PS1 and PS0 match MR17 and MR16 respectively,
the device is selected. If these bits do not match, the device is
not selected and the analog video outputs drive 0 mA, see
“Palette Priority Select Inputs” section.
CONT ROL RE GIST E RS
T he ADV7150 has 9 control registers. T o access each register,
two write operations must be performed. T he first write to the
address register specifies which of the 9 registers is to be ac-
cessed. T he second access determines the value written to that
particular control register.
Pixel T est Register
(Address Reg (A7–A0) = 00H )
T his register is used when the device is in test/diagnostic mode.
It is a 24-bit (8 bits each for RED, GREEN and BLUE) wide
read-only register which allows the MPU to read data on the
pixel port, see “T est Diagnostic” section.
DAC T est Register
(Address Reg (A7–A0) = 01H)
T his register is used when the device is in test/diagnostic mode.
It is a 30-bit (10 bits each for RED, GREEN and BLUE) wide
read-only register which allows MPU access to the DAC port,
see “T est Diagnostic” section.
SYNC
,
BLANK
and I
PLL
T est Register
(Address Reg (A7–A0) = 02H)
T his register is used when the device is in test/diagnostic mode.
It is a 3-bit wide (3 LSBs) read/write register which allows MPU
access to these particular pixel control bits, see “T est Diagnos-
tic” section.
ID Register
(Address Reg (A7–A0) = 03H)
T his is an 8-bit wide “Identification” read-only register. For the
ADV7150 it will always return the hexadecimal value 8EH.
Pixel Mask Register
(Address Reg (A7–A0) = 04H)
T he contents of the pixel mask register are individually bit-wise
logically AND-ed with the Red, Green and Blue pixel input
stream of data. It is an 8-bit read/write register with D0 corre-
sponding to R0, G0 and B0. For normal operation, this register
is set with FFH.
COMMAND RE GIST E R 1 (CR1)
(Address Reg (A7–A0) = 05H)
T his register contains a number of control bits as shown in the
diagram. CR1 is a 10-bit wide register. However for program-
ming purposes, it may be considered as an 8-bit wide register
(CR18 to CR19 are reserved).
T he diagram below shows the various operations under the con-
trol of CR1. T his register can be read from as well as written to. In
write mode, “0” should be written to CR11 and CR13 to CR17.
In read mode, CR11 and CR13 to CR19 are returned as zeros.
COMMAND RE GIST E R 1-BIT DE SCRIPT ION
Calibration Control (CR10)
T his bit automatically calibrates the onboard L OAD IN/
LOADOUT synchronization circuit. MR15 of Mode Register
MR1 must be set to “0.”
SYNCOUT
Control (CR12)
T his bit specified whether the video
SYNCOUT
signal is to be
enabled. On power up a “0” is written to the bit and
“
SYNCOUT
” is set three-state.
*THESE BITS ARE
READ–ONLY
RESERVED BITS.
A READ CYCLE WILL
RETURN ZEROS "00."
CR12
0 DISABLE
1 ENABLE
SYNCOUT
SYNCOUT CONTROL
CR17
CR16
CR15
CR14
CR12
CR11
CR10
CR13
RESERVED*
CR11
(0)
THIS BIT SHOULD BE
SET TO ZERO
CALIBRATION CONTROL
CR10
0
1
DISABLE
CALIBRATES ON EVERY
VERTICAL SYNC (MR15=0)
CR17-CR13
(00000)
THESE BITS SHOULD
BE SET TO ZERO
CR18
CR19
Command Register 1 (CR1) (CR19–CR10)
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| ADV7150LS220 | 制造商:Analog Devices 功能描述: |
| adv7150ls85 | 制造商:Rochester Electronics LLC 功能描述:220MHZ 3X10 BIT VIDEO DAC - Bulk 制造商:Analog Devices 功能描述: |
| ADV7151 | 制造商:AD 制造商全稱:Analog Devices 功能描述:CMOS 220 MHz Pseudo-Color Graphics Triple 10-Bit Video RAM-DAC |
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| ADV7151KS135 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Video DAC with Color Palette (RAMDAC) |
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