參數(shù)資料
型號(hào)： SAA5667HL/NNNN
廠商： NXP SEMICONDUCTORS
元件分類： 微控制器/微處理器
英文描述： 8-BIT, MROM, 12 MHz, MICROCONTROLLER, PQFP100
封裝： 14 X 14 MM, 1.40 MM HEIGHT, PLASTIC, MS-026, SOT-407-1, LQFP-100
文件頁(yè)數(shù)： 77/112頁(yè)
文件大?。?/td> 537K
代理商： SAA5667HL/NNNN
2004 Sep 03
67
Philips Semiconductors
Product specication
Enhanced TV microcontrollers with
On-Screen Display (OSD)
SAA56xx
23.1
Display features
Teletext and Enhanced OSD modes
Level 1.5 WST features
US Closed Caption features
50/60 Hz or 100/120 Hz display timing modes
Two page operation (50/60 Hz only)
Serial and parallel display attributes
Single/double/quadruple width and height for characters
Smoothing capability of double size, double width,
double height and quadruple size characters
Scrolling of display region
Variable flash rate controlled by software
Globally selectable scan lines per row 9/10/13/16
Globally selectable character matrix (H × V) 12 × 9,
12
× 10, 12 × 13 and 12 × 16
Italics
Soft colours using CLUT with 4096 colour palette
Underline
Overline
Fringing (shadow) selectable from N-S-E-W direction
Fringe colour selectable
Meshing of defined area
Contrast reduction of defined area (both CC and
Teletext display modes
Cursor
Special graphics characters with two planes, allowing
four colours per character
64 dynamically redefinable characters for OSDs
Up to 4 WST character sets (G0/G2) user
programmable in a single device (e.g. Latin, Cyrillic,
Greek and Arabic)
G1 Mosaic graphics, Limited G3 Line drawing
characters
WST character sets and Closed Caption character set
user programmable in a single device.
23.2
Display modes
The display section has two distinct modes with different
features available in each:
TXT: This is the WST mode with additional serial and
global attributes. A TXT window is configured as a fixed
25 rows with 40 characters per row.
CC: This is the US Closed Caption mode. A CC window
is configured as a maximum of 16 rows with a maximum
of 48 characters per row.
In both of the above modes, the character matrix and
TV lines per row can be defined. There is an option of a
character matrix (H
× V) of 12 × 9, 12 × 10, 12 × 13, or
12
× 16, which have 9, 10, 13 and 16 TV lines per display
row, respectively.
Table 25 gives the possible number of display rows for
each combination, as allowed by the hardware.
Table 25 Maximum number of display rows
SFR TXT21 and memory mapped registers are used to
control the mode selection. The features will now be
described and their function in each of the modes given.
If the feature is different in either mode then this is stated.
CHARACTER
MATRIX
MAX NUMBER OF DISPLAY ROWS
TXT 625
TXT 525
CC
12 x 9
25
16
12 x 10
25
23
16
12 x 13
21
18
16
12 x 16
17
14
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