參數(shù)資料
型號(hào)： ADV7180
廠商： Analog Devices, Inc.
英文描述： 10-Bit, 4 x Oversampling SDTV Video Decoder
中文描述： 10位，4個(gè)采樣標(biāo)清視頻解碼器
文件頁(yè)數(shù)： 75/112頁(yè)
文件大?。?/td> 1320K
代理商： ADV7180
ADV7180
REGISTER ACCESS
The MPU can write to or read from all of the ADV7180
registers except the subaddress register, which is write only. The
subaddress register determines which register the next read or
write operation accesses. All communications with the part
through the bus start with an access to the subaddress register.
Then a read/write operation is performed from or to the target
address, which increments to the next address until a stop
command on the bus is performed.
REGISTER PROGRAMMING
The following sections describe the configuration for each
register. The communication register is an 8-bit, write-only
register. After the part has been accessed over the bus and a
read/write operation is selected, the subaddress is set up. The
subaddress register determines to or from which register the
operation takes place. Table 101 lists the various operations
under the control of the subaddress register for the control port.
SUB_USR_EN, Address 0x0E [5]
This bit splits the register map at Register 0x40.
Rev. A | Page 75 of 112
Register Select (SR7 to SR0)
These bits are set up to point to the required starting address.
I C SEQUENCER
An I
2
C sequencer is used when a parameter exceeds eight bits
and is therefore distributed over two or more I
2
C registers, for
example, HSB [11:0].
When such a parameter is changed using two or more I
2
C write
operations, the parameter may hold an invalid value for the
time between the first I
2
C being completed and the last I
2
C
being completed. In other words, the top bits of the parameter
may hold the new value while the remaining bits of the parameter
still hold the previous value.
To avoid this problem, the I
2
C sequencer holds the updated bits
of the parameter in local memory, and all bits of the parameter
are updated together once the last register write operation has
completed.
The correct operation of the I
2
C sequencer relies on the
following:
All I
2
C registers for the parameter in question must be
written to in order of ascending addresses. For example, for
HSB[10:0], write to Address 0x34 first, followed by 0x35,
and so on.
No other I
2
C can take place between the two (or more) I
2
C
writes for the sequence. For example, for HSB[10:0], write
to Address 0x34 first, immediately followed by 0x35, and
so on.
2
2
C ≥
COMMON I
0x3F
ADDRESS 0x0E BIT 5 = 0b
ADDRESS 0x0E BIT 5 = 1b
I
2
C SPACE
ADDRESS 0x40
≥
0xFF
2
C SPACE
ADDRI
≥
0x9C
USER MAP
USER SUB MAP
NORMAL REGISTER SPACE
INTERRUPT AND VDP REGISTER SPACE
0
Figure 50. Register Access—User Map and User Sub Map
相關(guān)PDF資料
PDF描述
ADV7180BCPZ 10-Bit, 4 x Oversampling SDTV Video Decoder
ADV7180BSTZ 10-Bit, 4 x Oversampling SDTV Video Decoder
ADV7181 Multiformat SDTV Video Decoder
ADV7181B Multiformat SDTV Video Decoder
ADV7181BBCPZ Multiformat SDTV Video Decoder
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
ADV7180_12 制造商:AD 制造商全稱:Analog Devices 功能描述:10-Bit, 4?? Oversampling SDTV Video Decoder
ADV7180BCP32Z 制造商:Analog Devices 功能描述:10-BIT, 4? OVERSAMPLING SDTV VIDEO DECODER - Trays
ADV7180BCP32Z-RL 制造商:Analog Devices 功能描述:IC
ADV7180BCPZ 功能描述:IC VIDEO DECODER SDTV 40-LFCSP RoHS:是 類別:集成電路 (IC) >> 線性 - 視頻處理 系列:- 標(biāo)準(zhǔn)包裝:250 系列:- 類型:電平移位器 應(yīng)用:LCD 電視機(jī)/監(jiān)控器 安裝類型:表面貼裝 封裝/外殼:28-WFQFN 裸露焊盤 供應(yīng)商設(shè)備封裝:28-WQFN（4x4）裸露焊盤 包裝:帶卷 (TR) 其它名稱:296-32523-2TPS65198RUYT-ND
ADV7180BCPZ 制造商:Analog Devices 功能描述:IC VIDEO DECODER 10BIT 57.27MSPS LFCSP40
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