參數(shù)資料
型號(hào)： SAA55XX
廠商： NXP Semiconductors N.V.
英文描述： TV microcontrollers with Closed Captioning (CC) and On-Screen Display (OSD)
中文描述： 與隱藏字幕（CC）和屏幕顯示（OSD電視微控制器）
文件頁(yè)數(shù)： 25/84頁(yè)
文件大?。?/td> 352K
代理商： SAA55XX
2000 Feb 23
25
Philips Semiconductors
Preliminary specification
TV microcontrollers with Closed Captioning (CC)
and On-Screen Display (OSD)
SAA55xx
FORCE DISP1 to FORCE DISP0
FORCE DISP<1:0>:
00 = automatic selection
01 = force display to 525 mode (9 lines per row)
10 = force display to 625 mode (10 lines per row)
11 = not valid (default to 625 mode)
SCREEN COL2 to SCREEN COL0 Defines colour to be displayed instead of TV picture and black background; these
bits are equivalent to the RGB components. SCREEN COL<2:0>:
000 = transparent
001 = CLUT entry 9
010 = CLUT entry 10
011 = CLUT entry 11
100 = CLUT entry 12
101 = CLUT entry 13
110 = CLUT entry 14
111 = CLUT entry 15
Text Register 18 (TXT18)
NOT3 to NOT0
BS1 to BS0
national option table selection, maximum of 31 when used with EAST/WEST bit
basic character set selection
Text Register 19 (TXT19)
TEN
TC2 to TC0
TS1 to TS0
enable twist character set (logic 1)
language control bits (C12, C13 and C14) that has twisted character set
twist character set selection
Text Register 20 (TXT20)
DRCS ENABLE
OSD PLANES
OSD LANG ENABLE
re-map column 9 to DRCS in TXT mode (logic 1)
character code columns 8 and 9 defined as double plane characters (logic 1)
enable use of OSD LAN<2:0> to define language option for display, instead of
C12, C13 and C14
alternative C12, C13 and C14 bits for use with OSD menus
OSD LAN2 to OSD LAN0
Text Register 21 (TXT21)
DISP LINES1 to DISP LINES0
the number of display lines per character row; DISP LINES<1:0>:
00 = 10 lines per character (defaults to 9 lines in 525 mode)
01 = 13 lines per character
10 = 16 lines per character
11 = reserved (logic 1)
character matrix size; CHAR SIZE<1:0>:
00 = 10 lines per character (matrix 12
×
10)
01 = 13 lines per character (matrix 12
×
13)
10 = 16 lines per character (matrix 12
×
16)
11 = reserved
enable I
2
C-bus Port 1 selection (P1.5/SDA1 and P1.4/SCL1) (logic 1)
CHAR SIZE1 to CHAR SIZE0
I
2
C PORT 1
BIT
FUNCTION
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