參數(shù)資料
型號(hào)： MC144144P
廠商： MOTOROLA INC
元件分類(lèi)： 顏色信號(hào)轉(zhuǎn)換
英文描述： Digital Signal Processors 44-JLCC -55 to 125
中文描述： COLOR SIGNAL DECODER, PDIP18
封裝： PLASTIC, DIP-18
文件頁(yè)數(shù)： 27/44頁(yè)
文件大?。?/td> 565K
代理商： MC144144P
MC144144
27
MOTOROLA
Using POPSET
POPSET provides an OSD mode that operates in a fash-
ion similar to the caption pop–on mode. The POPSET com-
mand organizes the memory into two eight–row blocks, one
visible on–screen and the other off–screen. An OSD screen
can then be created by loading the off–screen memory by
the command sequence POP ROW SEL, WRITE CHAR ..
WRITE CHAR .. POP ROW SEL .. WRITE CHAR .. WRITE
CHAR. The data can then be presented with the FLIP com-
mand.
The following is an example of a command sequence that
will create an OSD screen using the POPSET mode. It
creates a typical menu screen used in television receivers.
As noted earlier, in this document commands are written as 1
or 2, two digit Hex values, separated by a comma, within
curly braces. A comment field is written following the com-
mand to describe the action of the command or sequence of
commands, where appropriate. The comment field is identi-
fied by an * and anything following the * will be taken as a
“comment”.
{33}
* select pop mode. Sets up the memory organization.
*
* The first block of cmds will display > VIDEO in double wide chars.
* Each character is entered with the WRITE CHARD cmd.
*
* select poprow 2, cursor at char col 1
* move cursor to 0
* PAC for RED chars written in PAC location.
* Double wide char “>” will display in char col 1 & 2
* Green mid code written to char col 3
* “V” written to char col 4 & 5.
* “I”
* “D”
* “E”
* “O”
*
* The next block of cmds will display AUDIO in row 4 double width.
*
* select poprow 4, cursor in char col 1
* cursor to char col 3
* Green mid code written to char col 3
* “A” written to char col 4 & 5.
* “U”
* “D”
* “I”
* “O”
*
* The next cmds will display TIME in row 6 with double wide chars.
* Spacing is obtained without the A2 Cursor Set cmd to illustrate an alternate
* means of column alignment.
*
* select poprow 6, cursor in char col 1
* Green mid code written to char col 1
* double wide space char written to char col 2 & 3
* “T” written to char col 4 & 5.
* “I”
* “M”
* “E”
*
* SET UP will be displayed in row 8 using double wide chars
* select poprow 8
* cursor to 3
* Green char
* “S”
* “E”
* “T”
* “ ”
* “U”
* “P”
*
* CLOSED CAPTION displayed in row 10 using double wide chars
* The last letter, N, will appear in char col 30 & 31.
{A0,02}
{A2,00}
{A3,08}
{A5,3e}
{A3,02}
{A5,56}
{A5,49}
{A5,44}
{A5,45}
{A5,4f}
{A0,04}
{A2,03}
{A3,02}
{A5,41}
{A5,55}
{A5,44}
{A5,49}
{A5,4f}
{A0,06}
{A3,02}
{A5,20}
{A5,54}
{A5,49}
{A5,4d}
{A5,45}
{A0,08}
{A2,03}
{A3,02}
{A5,53}
{A5,45}
{A5,54}
{A5,20}
{A5,55}
{A5,50}
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