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參數(shù)資料
| 型號： | ADV7160 |
| 廠商： | Analog Devices, Inc. |
| 英文描述： | 96-Bit, 220 MHz True-Color Video RAM-DAC(96位,220MHz,真彩色視頻RAM-D/A轉(zhuǎn)換器) |
| 中文描述： | 96位，220 MHz的真彩色視頻RAM - DAC的（96位，220MHz，真彩色視頻RAM的的D / A轉(zhuǎn)換器） |
| 文件頁數(shù)： | 27/44頁 |
| 文件大?。?/td> | 687K |
| 代理商： | ADV7160 |
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ADV7160/ADV7162
REV. 0
–27–
then performing an MPU access to the Control Register. When
accessing Control Registers in the range 200H to 204H, and
when accessing the cursor image, the Address Register auto-
increments after each register access. On accessing the last cur-
sor image location at address 7FFH, the address register reverts
to address 000H. The Address Register also auto-increments
after a blue access, when accessing color registers in the address
range 303H to 304H.
ID Register
(Address Reg (A10–A0) = 003H)
This is an 8-bit wide “Identification” read-only register. For the
ADV7160 it will always return the hexadecimal value 76H. For
the ADV7162 it will always return the hexadecimal value 79H.
Pixel Mask Register
(Address Reg (A10–A0) = 004H)
The contents of the pixel mask register are individually bit-wise
logically ANDed 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 REGISTER 1 (CR1)
(Address Reg (A10–A0) = 005H)
This 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
(CR19 to CR18 reserved).
Figure 40 shows the various operations under the control of
CR1. This register can be read from as well written to. In write
mode zero should be written to CR12. In read mode, CR19
and CR18 are returned as zeros.
COMMAND REGISTER 1-BIT DESCRIPTION
Calibration Control (CR10)
This bit automatically calibrates the on-board LOADIN/
LOADOUT synchronization circuit on every vertical Sync.
MR15 of Mode Register MR1 must be set to “0.”
Figure 40. Command Register 1 (CR1) (CR19–CR10)
Hi-Byte Control (CR13)
This bit enables access to the Hi Byte of the Address Register.
When CR13 is set to Logic “0”, the part is compatible to the
ADV7150. To access the hi-byte of the address register, this bit
is set to Logic “1.”
PS Function Control (CR15–CR14)
These bits control the functions of the PS inputs. They are
used to enable the Overlay Mode, Bypass Mode or the Palette
Select Mode. In Palette Select Mode (CR15 and CR14 = “0”),
these inputs are used to multiplex the RGB outputs of a number
of devices. On a pixel by pixel basis, PS1 and PS0 are com-
pared against the PS match bits, MR17 and MR16. If they
match, then the part behaves normally. If they don’t match,
then the analog output currents are switched to zero for that
clock cycle, thus allowing another device, whose PS match bits
match during this time, to drive the monitor. In Bypass Mode
(CR15 = “0,” CR14 = “1”), PS1 is used to switch between one
of the color modes through the Color Palette and one of the Pal-
ette Bypass Modes, on a pixel by pixel basis. The color mode
through the palette is selected using CR17 and CR16. It is il-
legal to program CR27 to CR24 to select one of the bypass modes
when using the PS bits to select a bypass mode at the pixel rate.
This switching on a pixel by pixel basis is only allowed when using
an ADV7160 device. Therefore, for the ADV7162, this mode
(CR15 = “0,” CR14 = “1”), is reserved and should not be used.
In Overlay Mode (CR15 = “1,” CR14 = “0”), the PS inputs
provide control for a three color overlay. Whenever a value
other than “00” is placed on the overlay inputs, the correspond-
ing overlay color is displayed. When the overlay inputs contain
“00,” the color is specified by the pixel inputs.
When CR15 and CR14 = “1,” the PS inputs are completely
ignored. There is no overlay, no bypass switching and the RGB
outputs are enabled.
Bypass Color Mode Control (CR17–CR16)
These bits control the mode during bypass switching. There are
three different modes: 24-bit Bypass, 16-bit Bypass or 15-bit
Bypass Mode.
RESERVED*
CR19
CR18
CR17
CR16
CR12
CR15
CR14
CR13
CR11
CR10
*
THESE BITS ARE READ-ONLY
RESERVED BITS.
A READ CYCLE WILL RETURN
ZEROS "00."
TEST MODE CONTROL
CR11
1 ENABLE TEST
MODE
0 DISABLE
PS FUNCTION CONTROL
0 0
0 1
1 0
1 1
CR15 CR14
PALETTE SELECTS
BYPASS MODE**
OVERLAYS
IGNORE PS INPUTS
**THIS MODE IS ONLY AVAILABLE
ON THE ADV7160.
IT IS RESERVED ON THE ADV7162.
ADDRESS REGISTER
HI-BYTE CONTROL
CR13
0 NO ACCESS TO HI-BYTE
(ADV7150 COMPATIBLE)
CR12
(0)
BYPASS COLOR MODE
0 0
0 1
1 0
1 1
CR17 CR16
15-BIT BYPASS
16-BIT BYPASS
24-BIT BYPASS
RESERVED
THIS BIT SHOULD
BE SET TO ZERO
CALIBRATION
CONTROL
CR10
1 CALIBRATES ON
EVERY VERTICAL
SYNC (MR15=0)
0 DISABLE
1 ACCESS TO HI-BYTE
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| ADV7162 | 96-Bit, 220 MHz True-Color Video RAM-DAC(96位,220MHz,真彩色視頻RAM-D/A轉(zhuǎn)換器) |
| ADV7162KS140 | 96-Bit, 220 MHz True-Color Video RAM-DAC |
| ADV7162KS170 | 96-Bit, 220 MHz True-Color Video RAM-DAC |
| ADV7162KS220 | 96-Bit, 220 MHz True-Color Video RAM-DAC |
| ADV7160KS140 | 96-Bit, 220 MHz True-Color Video RAM-DAC |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| ADV7160KS140 | 制造商:Analog Devices 功能描述: 制造商:Rochester Electronics LLC 功能描述:220 MHZ VIDEO RAM DAC I.C. - Bulk |
| ADV7160KS170 | 制造商:Analog Devices 功能描述:DAC 3-CH Segment 10-bit 160-Pin MQFP 制造商:Rochester Electronics LLC 功能描述:220 MHZ VIDEO RAM DAC I.C. - Bulk |
| ADV7160KS220 | 制造商:Analog Devices 功能描述: 制造商:Rochester Electronics LLC 功能描述: |
| ADV7162 | 制造商:AD 制造商全稱:Analog Devices 功能描述:96-Bit, 220 MHz True-Color Video RAM-DAC |
| ADV7162KS140 | 制造商:Rochester Electronics LLC 功能描述: 制造商:Analog Devices 功能描述: |
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