參數(shù)資料
型號: TDA936X
廠商: NXP Semiconductors N.V.
英文描述: TV signal processor-Teletext decoder with embedded m-Controller
中文描述: 電視信號處理器與嵌入式米圖文電視解碼器控制器
文件頁數(shù): 28/140頁
文件大?。?/td> 570K
代理商: TDA936X
Philips Semiconductors
Preliminary specification
1999 Sep 28
28
TV signal processor-Teletext decoder with
embedded
μ
-Controller
TDA 935X/6X/8X series
Character Set Feature Bits
Features available on the TDA935X/6X/8X devices are reflected in a specific area of the character ROM. These
sections of the character ROM are mapped to two Special Function Registers: TXT22 and TXT12. Character
ROM address 09FEH is mapped to SFR TXT22 as shown in Table 5. Character ROM address 09FFH is
mapped to SFR TXT12 as shown in Table 7.
MAPPED ITEMS
Character ROM;
address 09FEH
Mapped to TXT22
U = Used, X = Reserved
Table 5 Character Rom - TXT22 mapping
11
X
10
X
9
X
8
X
7
X
6
X
5
X
4
U
3
U
2
U
1
U
0
X
7
6
5
4
3
2
1
0
BIT
0
1
FUNCTION
Reserved
1 = Text Acquisition available
0 = Text Acquisition not available
1 = Closed Caption Acquisition available
0 = Closed Caption Acquisition not available
1 = PWM0, PWM1, PWM2 and PWM3 not present
0 = PWM0, PWM1, PWM2 and PWM3 output on Port 3.0 to Port 3.3 respectively
1 = 10 page available
0 = 6 page available
Reserved
Table 6 Description of Character ROM address 09FEH bits
2
3
4
5 to 11
MAPPED ITEMS
Character ROM;
address 09FFH
Mapped to TXT2
4 = Used, 5 = Reserved
Table 7 Character Rom - TXT12 mapping
11
X
10
X
9
X
8
X
7
X
6
X
5
X
4
U
3
X
2
X
1
X
0
X
6
5
4
3
2
BIT
4
FUNCTION
1 = Spanish character set present
0 = no Spanish character set present
Reserved
0 to 3, 5 to 11
Table 8 Description of Character ROM address 0X 09FFH bits
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