saa569x NXP Semiconductors, saa569x Datasheet - Page 35

• Manufacturer Part Number: saa569x
• Description: Enhanced Tv Microcontrollers With On-screen Display Osd
• Manufacturer: NXP Semiconductors

Philips Semiconductors
8.6
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
2002 May 06
Character ROM;
address 09FEH
Mapped to TXT22
U = Used and X = Reserved
Character ROM;
address 09FFH
Mapped to TXT12
U = Used and X = Reserved
0 to 3 and 5 to 11
Enhanced TV microcontrollers with
On-Screen Display (OSD)
MAPPED ITEMS
MAPPED ITEMS
Character set feature bits
4 to 11
0 to 2
BIT
BIT
3
4
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
reserved
11
11
1 = Spanish character set present
0 = no Spanish character set present
X
X
10
10
X
X
X
X
9
9
X
X
8
8
X
X
7
7
7
35
FUNCTION
FUNCTION
X
X
6
6
6
X
X
5
5
5
U
X
4
4
4
6
SAA567x; SAA569x
U
X
3
3
3
5
Objective specification
X
X
2
2
2
4
X
X
1
1
1
3
X
X
0
0
0
2