saa5647hl NXP Semiconductors, saa5647hl Datasheet - Page 35

• Manufacturer Part Number: saa5647hl
• Description: Saa56xx Enhanced Tv Microcontrollers With On-screen Display Osd
• Manufacturer: NXP Semiconductors

Philips Semiconductors
8.6
Features available on the SAA56xx 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 6 and described in Table 7. Character ROM address 09FFH is mapped to
SFR TXT12, as shown in Table 8 and described in Table 9.
Table 6 Character ROM - TXT22 mapping
Table 7 Description of Character ROM address 09FEH bits
Table 8 Character ROM - TXT12 mapping
Table 9 Description of Character ROM address 09FFH bits
2004 Sep 03
Character ROM;
address 09FEH
Mapped to TXT22
U = Used, X = Reserved
Character ROM;
address 09FFH
Mapped to TXT12
U = Used, X = Reserved
Enhanced TV microcontrollers with
On-Screen Display (OSD)
MAPPED ITEMS
MAPPED ITEMS
0 to 3, 5 to 11
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 Port 2.4 respectively
0 = PWM0, PWM1, PWM2 and PWM3 output routed to Port 3.0 to Port 3.3 respectively
reserved
1 = Spanish character set present
0 = no Spanish character set present
reserved
11
11
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
U
X
3
3
3
5
Product specification
X
X
2
2
2
4
SAA56xx
X
X
1
1
1
3
X
X
0
0
0
2