參數(shù)資料
型號: SAA569x
廠商: NXP Semiconductors N.V.
英文描述: Enhanced TV microcontrollers with On-Screen Display (OSD)
中文描述: 與微控制器在強化電視屏幕顯示(OSD)
文件頁數(shù): 35/116頁
文件大?。?/td> 532K
代理商: SAA569X
2002 May 06
35
Philips Semiconductors
Objective specification
Enhanced TV microcontrollers with
On-Screen Display (OSD)
SAA567x; SAA569x
8.6
Character set feature bits
Features available on the SAA567x; SAA569x 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; see Tables 7 and 8. Character ROM address 09FFH is mapped to SFR
TXT12; see Tables 9 and 10.
Table 7
Character ROM - TXT22 mapping
Table 8
Description of Character ROM address 09FEH bits
Table 9
Character ROM - TXT12 mapping
Table 10
Description of Character ROM address 09FFH bits
MAPPED ITEMS
11
10
9
8
7
6
5
4
3
2
1
0
Character ROM;
address 09FEH
Mapped to TXT22
U = Used and X = Reserved
X
X
X
X
X
X
X
X
U
X
X
X
7
6
5
4
3
2
1
0
BIT
FUNCTION
0 to 2
3
reserved
1 = PWM0, PWM1, PWM2 and PWM3 output routed to Port 2.1 to 2.4 respectively
0 = PWM0, PWM1, PWM2 and PWM3 output routed to Port 3.0 to 3.3 respectively
reserved
4 to 11
MAPPED ITEMS
11
10
9
8
7
6
5
4
3
2
1
0
Character ROM;
address 09FFH
Mapped to TXT12
U = Used and X = Reserved
X
X
X
X
X
X
X
U
X
X
X
X
6
5
4
3
2
BIT
FUNCTION
4
1 = Spanish character set present
0 = no Spanish character set present
reserved
0 to 3 and 5 to 11
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