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參數(shù)資料
| 型號(hào)： | STV5345 |
| 廠商： | 意法半導(dǎo)體 |
| 英文描述： | TELETEXT DECODER WITH 8 INTEGRATED PAGES |
| 中文描述： | 圖文電視解碼器，集成8頁(yè) |
| 文件頁(yè)數(shù)： | 15/25頁(yè) |
| 文件大?。?/td> | 579K |
| 代理商： | STV5345 |
第1頁(yè)第2頁(yè)第3頁(yè)第4頁(yè)第5頁(yè)第6頁(yè)第7頁(yè)第8頁(yè)第9頁(yè)第10頁(yè)第11頁(yè)第12頁(yè)第13頁(yè)第14頁(yè)當(dāng)前第15頁(yè)第16頁(yè)第17頁(yè)第18頁(yè)第19頁(yè)第20頁(yè)第21頁(yè)第22頁(yè)第23頁(yè)第24頁(yè)第25頁(yè)
D7
D6
D5
D4
D3
D2
D1
D0
*
*
*
*
*
EVEN
OFF
TC
SEL11B
R0
Mode 0
TA
7 + P/
8 BIT
ACQ.
ON/OFF
GHOST
ROW
ENABLE
DEW/
FULL
FIELD
TCS
ON
T1
T0
R1
Mode 1
BLOCK
SELECT
A3
BANK
SELECT
A2
ACQ.
CCT
A1
ACQ.
CCT
A0
TB
START
COLUMN
SC2
START
COLUMN
SC1
START
COLUMN
SC0
R2
Page request adress
*
*
*
PRD4
PRD3
PRD2
PRD1
PRD0
R3
Page request data
*
*
*
*
A3
A2
A1
A0
R4
Display chapter
BKGND
OUT
BKGND
IN
COR
OUT
COR
IN
TEXT
OUT
TEXT
IN
PON
OUT
PON
IN
R5
Display control(normal)
BKGND
OUT
BKGND
IN
COR
OUT
COR
IN
TEXT
OUT
TEXT
IN
PON
OUT
PON
IN
R6
Display control
(newsflash / subtitle)
STATUS
ROW
BTM/TOP
CURSOR
ON
CONCEAL/
REVEAL
TOP/
BOTTOM
SINGLE/
DOUBLE
HEIGHT
BOX ON
24
BOX ON
1-23
BOX ON
0
R7
Display mode
*
*
*
A3
CLEAR
MEM.
A2
A1
A0
R8
Active chapter
*
*
*
R4
R3
R2
R1
R0
R9
Active row
*
*
C5
C4
C3
C2
C1
C0
R10
Active column
D7
(R/W)
D6
(R/W)
D5
(R/W)
D4
(R/W)
D3
(R/W)
D2
(R/W)
D1
(R/W)
D0
(R/W)
R11A
Active data
60Hz
0
0
0
0
0
0
VCS
signal
quality
R11B
Status
*
*
EROD
A1
A0
*
*
*
R12
Page request address
* Reserved register bits : must beset to 0
5
Table 2 :
Registerspecification
REGISTERMAP (see Table 2)
RegistersR0 to R10 andR12 are write onlywhilst
R11A is a read/write and R11B is a read only
register respect to the microprocessor.
The automatic succession on a byte basis is indi-
cated by the arrows in Table 2.
In the normal operating mode TA, TB and TC
should be set to logic level 0.
After power-up thecontents of the registers areas
follows: all bits in registersR0 to R12 are cleared
to zero with the exception of bits D0 and D1 in
registersR5 and R6 whichare set to logical one.
After power-up all the memory bytes are preset to
hexadecimalvalue20H(space)withthe exception
of the byte corresponding to row 0 of column 7 of
chapter 0 which is set to the value corresponding
to ”alphawhite” hexadecimalvalue 07 H.
REFRESH ON DISPLAYFUNCTION
This function allows independentlyto fill the mem-
ory using 3 acquisition circuits when the 4th one
refreshes the displayedpage.
WhenEROD(D5ofReg.12)is0,refreshondisplay
function is not active. Four teletext pagesare filled
into memory correspondingto addressesof acqui-
sition registers.
Two blocks of 8 pages are selected with A3 (D7of
Reg. 2)
Upper or lowerbank of 4 pagesis selected with A2
(D6 of Reg. 2).
Acquisition circuits areselected with A1/A0(D5/D4
of Reg.2).This 2bits alsodeterminethe 1KByteof
RAM (the chapter) allocated to each acquisition
circuit.
When EROD = 1, refresh on display function is
active.
3 acquisition circuits store pages as described
above. The 4th one stores data into the current
displayed chapter. The chapter is selected with
addressesA3/A2/A1/A0(D3/D2/D1/D0of Reg. 4).
Noticethat A1/A0(D1/D0 of Reg.4) givethe circuit
number to be used to refreshthis displayed chap-
ter.ThatmeansA1/A0ofrefreshondisplayfunction
(D4/D3 of Reg. 12) have to be written identical to
A1/A0(D1/D0ofReg. 4),asA2of acquisitioncircuit
(D6 of Reg.2) hasto be identicalto A2of displayed
chapter(D2 of Reg. 4).
STV5345- STV5345/H - STV5345/T
15/25
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| STV5345H | TELETEXT DECODER WITH 8 INTEGRATED PAGES |
| STV5345T | TELETEXT DECODER WITH 8 INTEGRATED PAGES |
| STV5346 | MONOCHIP TELETEXT DECODER WITH 8 INTEGRATED PAGES |
| STV5346D | MONOCHIP TELETEXT DECODER WITH 8 INTEGRATED PAGES |
| STV5347 | Monochip Teletext and VPS Decoder with 4 Integrated Pages(單片電文和VPS譯碼器帶4頁(yè)存儲(chǔ)器) |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| STV5345/H | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Teletext Circuit |
| STV5345/T | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Teletext Circuit |
| STV5345H | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:TELETEXT DECODER WITH 8 INTEGRATED PAGES |
| STV5345T | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:TELETEXT DECODER WITH 8 INTEGRATED PAGES |
| STV5346 | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:MONOCHIP TELETEXT DECODER WITH 8 INTEGRATED PAGES |
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