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SAA5665

Enhanced TV microcontrollers with On-Screen Display (OSD)

Philips Electronics 

Philips Semiconductors

Enhanced TV microcontrollers with

On-Screen Display (OSD)

Product specification

SAA56xx

BITS

FUNCTION

Text Register 20 (TXT20)

DRCS ENABLE

re-map column 8/9 to DRCS (or column 8/9/A/C if extended DRCS is enabled)

TXT and CC modes (logic 1)

OSD PLANES

character code columns 8/9 (or column 8/9/A/C if extended DRCS is enabled)

defined as double plane characters (special graphics characters) (logic 1)

EXTENDED SPECIAL GRAPHICS extended Special Graphics enabled, user definable range for special graphics

characters, in CC mode only (logic 1)

CHAR SELECT ENABLE

enables character set selection in CC display mode (logic 1)

OSD LANG ENABLE

enable use of OSD LAN<2:0> to define language option for display, instead of

C12/C13/C14

OSD LAN2 to OSD LAN0

alternative C12/C13/C14 bits for use with OSD menus

Text Register 21 (TXT21)

DISP LINES1 to DISP LINES0

CHAR SIZE1 to CHAR SIZE0

I2C Port 1

CCON

I2C Port 0

CC/TXT

the number of display lines per character row; DISP LINES<1:0>:

00 = 10 lines per character (defaults to 9 lines in 525 mode)

01 = 13 lines per character

10 = 16 lines per character

11 = reserved

character matrix size bits; CHAR SIZE<1:0>:

00 = 10 lines per character (matrix 12 × 10)

01 = 13 lines per character (matrix 12 × 13)

10 = 16 lines per character (matrix 12 × 16)

11 = reserved

enable I2C-bus Port 1 selection (P1.5/SDA1 and P1.4/SCL1) (logic 1)

Closed Caption acquisition on (logic 1)

enable I2C-bus Port 0 selection (P1.7/SDA0 and P1.6/SCL0) (logic 1)

display configured for CC mode (logic 1)

Text Register 22 (TXT22)

GPF7 to GPF6

reserved

GPF5 to GPF4 and GPF2 to GPF0 general purpose register, bits defined by mask programmable bits

(Character ROM address 09FEH)

GPF3

PWM0, PWM1, PWM2 and PWM3 output on Port 3.0 to Port 3.3 respectively

(logic 0)

PWM0, PWM1, PWM2 and PWM3 output on Port 2.1 to Port 2.4 respectively

(logic 1)

Text Register 23 (TXT23)

NOT B3 to NOT B0

EAST/WEST B

DRCS B ENABLE

BS B1 to BS B0

National Option Table selection for Page B, maximum of 32 when used with

EAST/WEST B bit

eastern language selection of character codes A0H to FFH for Page B (logic 1)

normal OSD characters used on Page B (logic 0)

re-map column 8/9 to DRCS (TXT and CC modes) on Page B (logic 1)

basic character set selection for Page B

2001 Dec 13

30

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