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)： 97/112頁(yè)
文件大小： 537K
代理商： SAA5667HL/NNNN
2004 Sep 03
85
Philips Semiconductors
Product specication
Enhanced TV microcontrollers with
On-Screen Display (OSD)
SAA56xx
MBK966
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
0
1
2
3
4
10
11
3
4
9
10
11
12
13
14
15
display
possible
soft scrolling
display possible
display
possible
display
map
entries
display
data
Display memory
Text area
ROW
Enable
bit = 0
Fig.36 Display memory map and data pointers.
23.9
Soft scroll action
The MMR Scroll Area, MMR Scroll Range, MMR Top
Scroll line and the MMR Status define the dynamic scroll
region. The soft scroll area (see Fig.37) is enabled when
the SCON bit is set in MMR Status. Fig.38 shows the CC
text areas and Fig.39 shows the TXT areas.
Bits SSP<3:0> define the position of the soft scroll area
window and bits SSH<3:0> define the height of the
window. Both are in MMR Scroll Range. Bits STS<3:0>
and bits SPS<3:0> define the rows that are scrolled
through the window. Both are in MMR Scroll Area.
Soft scrolling is done by modifying the Scroll Line value
SCL<3:0> in MMR Top Scroll Line and the first Scroll Row
value SCR<3:0> in the MMR Status.
If the number of rows allocated to the scroll counter is
larger than the defined visible scroll area, parts of rows at
the top and bottom may be displayed during the scroll
function. The registers can be written throughout the field
and the values are updated for display with the next field
sync. Care should be taken that the register pairs are
written to by the software in the same field.
Only a region that contains only single height rows or only
double height rows can be scrolled.
TXT: The display is organised as a fixed size of 25 rows
(0 to 24) of 40 columns (0 to 39), This is the standard size
for Teletext transmissions. The Control Data in row 25 is
not displayed but is used to configure the display page
correctly.
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