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参数资料
| 型号： | SAA5491H/NNN |
| 厂商： | NXP SEMICONDUCTORS |
| 元件分类： | 微控制器/微处理器 |
| 英文描述： | 8-BIT, MROM, 12 MHz, MICROCONTROLLER, PQFP80 |
| 封装： | 14 X 20 MM, 2.80 MM HEIGHT, PLASTIC, SOT-318-2, QFP-80 |
| 文件页数： | 17/72页 |
| 文件大小： | 498K |
| 代理商： | SAA5491H/NNN |
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1998 Dec 14
24
Philips Semiconductors
Preliminary specication
Economy teletext and TV microcontrollers
SAA5x9x family
Teletext Register 5 (TXT5) - WRITE only
BKGND OUT
background colour displayed outside teletext boxes (logic 1)
BKGND IN
background colour displayed inside teletext boxes (logic 1)
COR OUT
COR output active outside teletext boxes (logic 1)
COR IN
COR output active inside teletext boxes (logic 1)
TEXT OUT
text displayed outside teletext boxes (logic 1)
TEXT IN
text displayed inside teletext boxes (logic 1)
PICTURE ON OUT
video picture displayed outside teletext boxes (logic 1)
PICTURE ON IN
video picture displayed inside teletext boxes (logic 1)
Teletext Register 6 (TXT6) - WRITE only
See TXT5
this register has the same meaning as TXT5 but is only invoked if either newsash (C5) or
subtitle (C6) bit in row 25 of the basic page memory is set
Teletext Register 7 (TXT7) - WRITE only
STATUS ROW TOP
display row 24 below (logic 0) or above (logic 1) teletext page
CURSOR ON
display cursor at location pointed to by TXT9 and TXT10 (logic 1)
REVEAL
display characters in areas with the conceal attribute set (logic 1)
TOP/BOTTOM
display rows 0 to 11 (logic 0) or 12 to 23 (logic 1) when the double height bit is set
DOUBLE HEIGHT
display each character as twice normal height (logic 1)
BOX ON 24
enable teletext boxes in memory row 24 (logic 1)
BOX ON 1-23
enable teletext boxes in memory rows 1 to 23 (logic 1)
BOX ON 0
enable teletext boxes in memory row 0 (logic 1)
Teletext Register 8 (TXT8)
I2C SELECT(2)
select bit I2C-bus (logic 0) or byte I2C-bus (logic 1)
IDS ENABLE(2)
capture teletext Independent Date Services (logic 1)
DISABLE
SPANISH(2)
disable special treatment of Spanish packet 26 decoding
PKT 26 RECEIVED
set to logic 1 when packet 26 teletext data processed
WSS RECEIVED(5)
set to logic 1 when wide screen signalling data received
WSS ON(5)
enable acquisition of wide screen signalling data
CVBS0/CVBS1
select CVBS0 (logic 0) or CVBS1 (logic 1) input to the device
Teletext Register 9 (TXT9) - WRITE only
CURSOR FREEZE
locks current cursor position (logic 1)
CLEAR MEMORY
write 20H into every location in teletext memory (logic 1)
A0
TXT11 accesses the basic page memory, selected by TXT15 on the 10 page device, (logic 0)
or extension packet memory (logic 1)
R4 to R0
memory row to be accessed by TXT11
REGISTER
FUNCTION
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相关代理商/技术参数 |
参数描述 |
|---|---|
| SAA5491PS | 制造商:PHILIPS 制造商全称:NXP Semiconductors 功能描述:Economy teletext and TV microcontrollers |
| SAA5496 | 制造商:PHILIPS 制造商全称:NXP Semiconductors 功能描述:Economy teletext and TV microcontrollers |
| SAA5496H | 制造商:PHILIPS 制造商全称:NXP Semiconductors 功能描述:Economy teletext and TV microcontrollers |
| SAA5496PS | 制造商:PHILIPS 制造商全称:NXP Semiconductors 功能描述:Economy teletext and TV microcontrollers |
| SAA5497 | 制造商:PHILIPS 制造商全称:NXP Semiconductors 功能描述:Economy teletext and TV microcontrollers |
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