參數(shù)資料
型號(hào): SAA5497PS/NNN
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, PDIP52
封裝: 0.600 INCH, PLASTIC, SDIP-52
文件頁(yè)數(shù): 43/72頁(yè)
文件大小: 498K
代理商: SAA5497PS/NNN
1998 Dec 14
48
Philips Semiconductors
Preliminary specication
Economy teletext and TV microcontrollers
SAA5x9x family
9.21
Display position
The position of the display relative to the Hsync and Vsync
inputs can be varied over a limited range to allow for
optimum TV set-up.
The horizontal position is controlled by the X0 and X1 bits
in TXT16. Table 23 gives the time from the active edge of
the Hsync to the start of the display area for each setting
of X0 and X1.
Table 23 Display horizontal position
The line on which the display area starts depends on
whether the display is 625-line or 525-line and on the
setting of the Y0 to Y2 bits in TXT16. Table 24 gives the
first display line for each setting of Y0 to Y2, for both
625 and 525-line display.
On the other field, the display starts on the equivalent line.
Table 24 Display vertical position
X1
X0
Hsync TO DISPLAY
(s)
0
17.2
0
1
16.2
1
0
15.2
1
14.2
Y2
Y1
Y0
FIRST LINE FOR DISPLAY
625-LINE
525-LINE
0
42
28
0
1
44
30
0
1
0
46
32
0
1
48
34
1
0
34
20
1
0
1
36
22
1
0
38
24
1
40
26
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