SAA5531 Philips Semiconductors, SAA5531 Datasheet - Page 65

• Manufacturer Part Number: SAA5531
• Description: Enhanced TV microcontrollers with On-Screen Display OSD
• Manufacturer: Philips Semiconductors

Philips Semiconductors
19.4.4
Table 22 Serial character coding
2000 Feb 23
0 to 3 4 bits for 16 background colours
4
5
6
7
8
9
10
11
BITS
Enhanced TV microcontrollers with
On-Screen Display (OSD)
Underline switch:
0 = underline off
1 = underline on
Overline switch:
0 = overline off
1 = overline on
Display mode:
0 = superimpose
1 = boxing
Flash switch:
0 = flash off
1 = flash on
Italic switch:
0 = italics off
1 = italics on
Fringing switch:
0 = fringing off
1 = fringing on
Switch for serial coding:
0 = mode 0
1 = mode 1
Mode bit:
1 = serial code
S
ERIAL CHARACTER CODING
SERIAL MODE 0
(‘SET AT’)
4 bits for 16 background colours
Horizontal size:
0 = normal
1 = 2
Vertical size:
0 = normal
1 = 2
Display mode:
0 = superimpose
1 = boxing
Foreground colour switch
0 = Bank 0 (colours 0 to 7)
1 = Bank 1 (colours 8 to 15)
Background colour duration:
0 = stop BGC
1 = set BGC to end of row
End of row
0 = continue row
1 = end row
Switch for serial coding:
0 = mode 0
1 = mode 1
Mode bit:
1 = serial code
CHAR.POS. 1 (‘SET AT’)
DESCRIPTION
65
SERIAL MODE 1
4 bits for 16 background colours
Underline switch:
0 = underline off
1 = underline on
Overline switch:
0 = overline off
1 = overline on
Display mode:
0 = superimpose
1 = boxing
Foreground colour switch
0 = Bank 0 (colours 0 to 7)
1 = Bank 1 (colours 8 to 15)
Background colour duration (set
at):
0 = stop BGC
1 = set BGC to end of row
End of row (set at):
0 = continue row
1 = end row
Switch for serial coding:
0 = mode 0
1 = mode 1
Mode bit:
1 = serial code
CHAR.POS. >1 (‘SET AFTER’)
Preliminary specification
SAA55xx