Philips Semiconductors
Preliminary specification
Enhanced TV microcontrollers with
On-Screen Display (OSD)
CONTENTS
1
2
3
4
5
6
6.1
6.2
7
7.1
8
8.1
8.2
8.3
8.4
8.5
8.6
8.7
9
10
10.1
10.2
10.3
11
11.1
11.2
11.3
11.4
12
12.1
12.2
12.3
12.4
13
14
14.1
15
15.1
15.2
15.3
16
16.1
FEATURES
GENERAL DESCRIPTION
QUICK REFERENCE DATA
ORDERING INFORMATION
BLOCK DIAGRAM
PINNING INFORMATION
Pinning
Pin description
MICROCONTROLLER
Microcontroller features
MEMORY ORGANIZATION
ROM bank switching
Security bits - program and verify
RAM organisation
Data memory
SFR memory
Character set feature bits
External (Auxiliary) memory
POWER-ON RESET
REDUCED POWER MODES
Idle mode
Power-down mode
Standby mode
I/O FACILITY
I/O ports
Port type
Port alternative functions
LED support
INTERRUPT SYSTEM
Interrupt enable structure
Interrupt enable priority
Interrupt vector address
Level/edge interrupt
TIMER/COUNTER
WATCHDOG TIMER
Watchdog Timer operation
PULSE WIDTH MODULATORS
PWM control
Tuning Pulse Width Modulator (TPWM)
Software ADC (SAD)
I
2
C-BUS SERIAL I/O
I
2
C-bus port selection
28.2
28.3
28.4
29
30
31
17
17.1
17.2
17.3
17.4
18
18.1
19
19.1
19.2
19.3
19.4
19.5
19.6
19.7
19.8
19.9
19.10
19.11
19.12
19.13
19.14
19.15
19.16
19.17
20
21
22
23
23.1
23.2
23.3
24
25
26
27
28
28.1
MEMORY INTERFACE
Memory structure
Memory mapping
Addressing memory
Page clearing
DATA CAPTURE
Data Capture features
DISPLAY
SAA55xx
Display features
Display modes
Display feature descriptions
Character and attribute coding
Screen and global controls
Screen colour
Text display controls
Soft scroll action
Display positioning
Character set
ROM addressing
Redefinable characters
Display synchronization
Video/data switch (Fast Blanking) polarity
Video/Data switch adjustment
RGB brightness control
Contrast reduction
MEMORY MAPPED REGISTERS (MMR)
LIMITING VALUES
CHARACTERISTICS
QUALITY AND RELIABILITY
Group A
Group B
Group C
APPLICATION INFORMATION
EMC GUIDELINES
REFERENCES
PACKAGE OUTLINE
SOLDERING
Introduction to soldering through-hole mount
packages
Soldering by dipping or by solder wave
Manual soldering
Suitability of through-hole mount IC packages
for dipping and wave soldering methods
DEFINITIONS
LIFE SUPPORT APPLICATIONS
PURCHASE OF PHILIPS I
2
C COMPONENTS
2000 Feb 23
2
Philips Semiconductors
Preliminary specification
Enhanced TV microcontrollers with
On-Screen Display (OSD)
1
FEATURES
SAA55xx
•
Single-chip microcontroller with integrated OSD
•
Versions available with integrated data capture
•
OTP memory for both program ROM and character sets
•
Single power supply: 3.0 to 3.6 V
•
5 V tolerant digital inputs and I/O
•
29 I/O ports via individual addressable controls
•
Programmable I/O for push-pull, open-drain and
quasi-bidirectional
•
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, Power-down and Standby
•
Byte level
I
2
C-bus
interface with dual port I/O
•
32 Dynamically Redefinable Characters for OSDs
•
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 SAA55xx 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, On-Screen Display (OSD) and some
versions include an integrated data capture and display
function.
The data capture hardware has the capability of decoding
and displaying both 525 and 625-line World System
Teletext (WST), Closed Caption (CC) information, Video
Programming Information (VPS) and Wide Screen
Signalling (WSS) information. The same display hardware
is used both for Teletext, Closed Caption and On-Screen
Display, which means that the display features available
give greater flexibility to differentiate the TV set.
The SAA55xx family offers a range of functionality from
non-text, 16-kbyte program ROM and 256-byte RAM, to a
10 page text version, 128-kbyte program ROM and
2.25-kbyte RAM.
3
QUICK REFERENCE DATA
SYMBOL
PARAMETER
MIN.
TYP.
MAX.
UNIT
Supply
V
DDX
I
DDP
I
DDC
I
DDC(id)
I
DDC(pd)
I
DDC(stb)
I
DDA
I
DDA(id)
I
DDA(stb)
I
DDA(pd)
f
xtal
T
amb
T
stg
any supply voltage (V
DD
to V
SS
)
periphery supply current
core supply current
Idle mode core supply current
Power-down mode core supply current
standby mode core supply current
analog supply current
Idle mode analog supply current
standby mode analog supply current
Power-down mode analog supply current
crystal frequency
ambient temperature
storage temperature
3.0
1
−
−
−
−
−
−
−
−
−
−20
−55
3.3
−
15
4.6
0.76
5.1
45
0.87
809
0.45
12
−
−
3.6
−
18
6
1
9
48
1.0
950
0.7
−
+70
+125
V
mA
mA
mA
mA
mA
mA
mA
µA
mA
MHz
°C
°C
2000 Feb 23
3
Microchip MCU
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