Philips Semiconductors
Product specification
Microcontrollers for TV and video (MTV)
CONTENTS
1
2
3
4
5
5.1
6
6.1
6.2
7
8
9
9.1
10
10.1
10.2
11
11.1
11.2
11.3
11.4
12
12.1
12.2
13
13.1
13.2
13.3
13.4
13.5
13.6
13.7
13.8
13.9
FEATURES
DESCRIPTION
APPLICATIONS
ORDERING INFORMATION
BLOCK DIAGRAM
Part options
PINNING INFORMATION
Pinning
Pin description
DESCRIPTION OF STANDARD FUNCTIONS
INPUT/OUTPUT (I/O)
DESCRIPTION OF DERIVATIVE
FUNCTIONS
General description
6-BIT PWM DACS
PWM DAC operation
Special Function Register PWMn (n = 0 to 7)
14-BIT PWM DAC (TDAC)
14-bit counter
14-bit DAC operation
Special Function Register TDACL
Special Function Register TDACH
SOFTWARE ANALOG-TO-DIGITAL FACILITY
Special Function Register SAD
Software ADC operation
ON SCREEN DISPLAY (OSD)
OSD features
General description of the OSD module
OSD logic
Character Generator ROM
Display RAM organization
OSD Special Function Registers
OSD Control Register OSCON
OSD Control Register OSMOD
OSD Control Register OSORG
14
14.1
14.2
14.3
14.4
14.5
15
15.1
15.2
15.3
16
17
18
19
20
21
22
22.1
22.2
22.3
23
24
83C145; 83C845
83C055; 87C055
PROGRAMMING CONSIDERATIONS
EPROM Characteristics
Programming operation
Erasure Characteristics
Reading Signature Bytes
EPROM Programming and Verification
PROGRAMMING THE OSD EPROM
Overview
Character description and programming
OSD EPROM bit map
REGISTER MAP
LIMITING VALUES
HANDLING
DC CHARACTERISTICS
AC CHARACTERISTICS
PACKAGE OUTLINES
SOLDERING
Introduction
Soldering by dip or wave
Repairing soldered joints
DEFINITIONS
LIFE SUPPORT APPLICATIONS
1996 Mar 22
2
Philips Semiconductors
Product specification
Microcontrollers for TV and video (MTV)
1
FEATURES
83C145; 83C845
83C055; 87C055
•
One 14-bit PWM for high-precision voltage integration
•
Digital-to-analog converter and comparator with 3 inputs
multiplexer
•
Nine dedicated I/Os plus 28 port bits (15 port bits with
alternative uses)
•
4 high current open-drain port outputs
•
12 high voltage (+12 V) open-drain outputs
•
Programmable video input and output polarities
•
80C51 instruction set
•
No external memory capability
•
Plastic shrink dual in-line package (0.07 inch centre
pins)
•
High-speed CMOS technology
•
Power supply: 5 V
±10%.
2
DESCRIPTION
•
Masked ROM sizes:
– 8 kbytes (83C845)
– 12 kbytes (83C145)
– 16 kbytes (83C055)
– 16 kbytes OTP (87C055)
•
RAM: 256 bytes
•
On Screen Display (OSD) controller
•
Three digital video outputs
•
Multiplexer/mixer and background intensity controls
•
Flexible formatting with OSD New Line option
•
128
×
10 bits display RAM
•
Designed for reduced Radio Frequency Interference
(RFI)
•
Character generator ROM:
– character format 18 lines
×
14 dots
– 60 visible characters
– 4 special characters
•
Eight text shadowing modes
•
Text colour selectable per character
•
Background colour selectable per word
•
Background colour versus video selectable per
character
•
Eight 6-bit Pulse Width Modulators (PWM) for analog
voltage integration
4
ORDERING INFORMATION
The 83C055, Microcontroller for Television and Video
(MTV) applications, is a derivative of Philips’ industry
standard 80C51 microcontroller.
The 83C055 is intended for use as the central control
mechanism in a television receiver or tuner.
3
APPLICATIONS
Providing tuner functions and an OSD facility, it represents
a next generation replacement for the currently available
parts.
PACKAGE
TYPE NUMBER
NAME
P83C055BBP
P87C055BBP
P83C145BBP
P83C845BBP
SDIP42 plastic shrink dual in-line package; 42 leads (600 mil)
SOT270-1
DESCRIPTION
VERSION
TEMP.
RANGE
(°C)
FREQ.
(MHz)
0 to +70
3.5 to 12
1996 Mar 22
3
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