參數(shù)資料
型號: ST6389
廠商: 意法半導(dǎo)體
英文描述: 8-BIT MCUs WITH ON-SCREEN-DISPLAY FOR TV TUNING
中文描述: 8位微控制器對屏幕,電視調(diào)諧顯示器
文件頁數(shù): 55/82頁
文件大?。?/td> 718K
代理商: ST6389
55/82
ST6380, ST6381, ST6382, ST6383, ST6388, ST6389
ON-SCREEN DISPLAY
(Cont’d)
Vertical Space Register 1 (VSR1)
Address: 3Dh - Page 5
Read/Write
D7
. This bit is not used
FF_SH
. Full fringe / shadow background select.
This bit selects between the fringe and shadow
backgrounds for the smallest size (18H) charac-
ters, provided that the FR bit is also set.
“1” The 18H characters are surrounded by a
fringe background. (Provided that FR bit is set
and the selected background is active). This
consists of a one dot wide contour in the back-
ground colour
“0” The 18H characters have a shadow back-
ground. (provided also that FR bit is set and
the selected background is active). This con-
sists of a one dot wide line on the right and
lower sides of the character.
VS5, VS0
. Vertical Space. These bits determine
the spacing between lines if the Vertical Space En-
able bit (VSE) in the format character is set and
the Vertical Space Select bit (VSS) is set. If VSE is
zero there will be no spaces between lines. The
Vertical Space bits can specify one of 63 spacing
values from 4H to 252H. The space between lines
is defined by the following formula.
Space between lines = 4H(2
5
(VS5) + 2
4
(VS4) +
2
3
(VS3) + 2
2
(VS2) + 2
1
(VS1) + 2
0
(VS0))
Note
: The case of all Vertical Space bits being
zero is not legal.
7
0
D7
FF_SH
VS5
VS4
VS3
VS2
VS1
VS0
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