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| 型號(hào)： | Z8612912PSC |
| 廠商： | ZILOG INC |
| 元件分類： | 消費(fèi)家電 |
| 英文描述： | NTSC LINE 21 DECIDER |
| 中文描述： | SPECIALTY CONSUMER CIRCUIT, PDIP18 |
| 封裝： | PLASTIC, DIP-18 |
| 文件頁(yè)數(shù)： | 17/50頁(yè) |
| 文件大?。?/td> | 927K |
| 代理商： | Z8612912PSC |
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Z86129/130/131
NTSC Line 21 Decoder
P R E L I M I N A R Y
DS96TEL0200
17
1
General Purpose OSD Modes (Z86129 only)
In addition to displaying data extracted from Line 21 of the
incoming video, the Z86129 can display information
supplied through its serial port. This is referred to as On-
Screen Display (OSD) display mode. This mode provides:
I
Programmable Full Screen OSD: 15 display rows by
32 character columns
I
Graphics characters
I
Double high and double wide characters
I
Fully programmable display positioning; information
may be placed anywhere on the screen.
I
Accepts externally supplied, or internally generated
VSYNC to enable OSD even when no video is
present.
Character Set
The Z86129 has a new character set with extended
features, such as:
I
New font with descenders on lower case letters
I
Optional display mode using drop shadow font (in
other words, fringing appears on each character rather
than a solid, “black box” background).
I
EIA-608 Extended Characters
I
EIA-608 Background and Foreground attributes
I
Special framing and graphics characters for OSD
display.
I
Double High and Double Wide character display for
OSD.
I
Fifteen scan lines per character row for OSD and
TEXT.
Note:
Contact the nearest Zilog Sales office for additional
information on how to define your own custom OSD
character set.
Serial Communications Interface
Communications and control of the Z86129/130/131 is
through a serial control interface. Two Serial Control
Modes are available with the Z86129/130/131 performing
as a slave device. These modes are:
1.
A two wire, I
2
C interface.
2.
A three wire, serial peripheral interface (SPI).
3.
A total of five device pins are dedicated to the serial
control port function. These pins are designated as:
I
2
C Mode.
The I
2
C port on the Z86129/130/131 always
acts as a slave device. I
2
C Mode is selected by bringing
the SMS pin Low and the SEN pin High. SEN must remain
High whenever I
2
C mode is desired. If the SEN pin is
brought Low, with SMS also Low, the part will be reset.
SDA and SCK are the data and clock lines of the I
2
C port,
respectively. During I
2
C mode operation the VIN/INTRO
signal (pin 13), can be configured to generate interrupt
requests to the master device on selected events. (See
Note
paragraph below.)
SPI Mode.
SSPI Mode is selected by making the SMS pin
High. In SPI mode the Z86129/130/131 acts as a slave
device. All communications are clocked in and out as 8-bit
bytes. SCK is the serial clock (input), SDA is Data-In and
SDO is Data-Out. The SEN pin enables communication
when High, when Low High High High, the SDO pin is tri-
state.
Table 2. Z86129/130/131 Serial Control Signals
Signal
Pin #
I/O
I
2
C
SPI
Notes:
SMS = Serial Mode Select High = SPI and Low = I
2
C
SCK = Serial port clock for either Serial Mode.
SDA = Serial port data for I
2
C Mode and Data In for SPI Mode.
SDO = Serial Data Out for SPI Mode. Not used in I
2
C Mode.
SEN = SPI Mode Enable signal. Must be High for I
2
C Mode.
SMS
6
I
0
1
SCK
15
I
CLK
CLK
SDA
14
I/O
Data
Data In
SDO
16
O
NA
Data Out
SEN
4
I
1
Enable
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| Z8612912PSG | 功能描述:編碼器、解碼器、復(fù)用器和解復(fù)用器 CC DECODER RoHS:否 制造商:Micrel 產(chǎn)品:Multiplexers 邏輯系列:CMOS 位數(shù): 線路數(shù)量（輸入/輸出）:2 / 12 傳播延遲時(shí)間:350 ps, 400 ps 電源電壓-最大:2.625 V, 3.6 V 電源電壓-最小:2.375 V, 3 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-44 封裝:Tray |
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| Z8612912SSG | 功能描述:編碼器、解碼器、復(fù)用器和解復(fù)用器 CC DECODER RoHS:否 制造商:Micrel 產(chǎn)品:Multiplexers 邏輯系列:CMOS 位數(shù): 線路數(shù)量（輸入/輸出）:2 / 12 傳播延遲時(shí)間:350 ps, 400 ps 電源電壓-最大:2.625 V, 3.6 V 電源電壓-最小:2.375 V, 3 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-44 封裝:Tray |
| Z8612912SSG00TR | 制造商:Zilog Inc 功能描述:Z86129 Series 5 V Surface Mount NTSC Line 21 Decoder - SOIC-18 |
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