SAA5697

 FEATURES

• Single-chip higher frequency microcontroller with

integrated On-Screen Display (OSD)

• Support for 50/60 Hz, 100/120 Hz and Progressive

Scan display modes.

• Versions available with integrated Data Capture

• Both active HIGH and active LOW reset pins

• OTP memory for both Program ROM and character sets

• Easy connection of external ROM

• In-System Programming (ISP) option for the embedded

OTP memories using IEEE1149 (JTAG: Joint Test

Action Group) interface

• Single power supply: 3.0 to 3.6 V

• 5 V tolerant digital inputs and I/O

• 32 I/O ports via individual addressable controls

• Larger Character ROM, up to 1020 characters of

12 × 10 pixels

• Smoothing capability on sized characters

• Programmable I/O for push-pull, open-drain and

quasi-bidirectional and high-impedance

• Two port lines with 8 mA sink (at <0.4 V) capability, for

direct drive of LED

• Single crystal oscillator for microcontroller, OSD and

Data Capture

• Power reduction modes: Idle, Standby and Power-down

• Byte level I2C-bus up to 400 kHz dual port I/O

• 64 Dynamically Redefinable Characters for OSDs

• Increased special graphic characters allowing four

colours per character

• Selectable character height 9, 10, 13 and 16 TV lines

• Pin compatibility throughout family

• Operating temperature: −20 to +70 °C.

2 GENERAL DESCRIPTION

The SAA567x; SAA569x family of microcontrollers are a

derivative of the Philips industry-standard 80C51

microcontroller and are intended for use as the central

control mechanism in a television receiver. They provide

control functions for the television system, OSD and

incorporate an integrated Data Capture and display

function for either Teletext or Closed Caption.

The devices offer all the features from the SAA56xx family

with the addition of support for a range of Progressive

Scan display modes.

The Data Capture hardware can decode and display both

525-line and 625-line World System Teletext (WST),

Closed Caption information, Video Programming System

(VPS) information and Wide Screen Signalling (WSS)

information. The same display hardware is used for

Teletext, Closed Caption and On-Screen Display, which

means that the display features available give greater

flexibility to differentiate the TV set. The VBI data services

supported by each device is specified in Chapter 4

The family of devices offers a range of memory variants

with Program ROM sizes of 128 and 192 kbytes, also up

to 14 kbytes of RAM.

Another new feature in the SAA567x; SAA569x family of

products supports the addition of external ROM to provide

up to a total of 256 kbytes of program ROM (e.g.

192 kbytes internal + 64 kbytes external to the SAA567x;

SAA569x) with no external logic.

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