z90341 ZiLOG Semiconductor, z90341 Datasheet

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z90341

Manufacturer Part Number
z90341
Description
Digital Television Controller
Manufacturer
ZiLOG Semiconductor
Datasheet
Zilog
FEATURES
GENERAL DESCRIPTION
The Z90341 is a member of Zilog's family of Digital
Television Controllers designed to provide complete audio
and video control of television receivers, video recorders,
and advanced on-screen display facilities.
The Z90341 features a powerful Z89C00 RISC processor
core that controls on-board peripheral functions and
registers using the standard processor instruction set.
In closed caption mode, text can be decoded directly from
the composite video signal and displayed on the screen
with assistance from the processor's digital signal
processing capabilities. The character representation in
this mode allows for a simple attribute control through the
insertion of control characters.
The character control mode provides access to the full set
of attribute controls. The modification of attributes is allowed
on a character-by-character basis. The insertion of control
characters permits direction of other character attributes.
Display attributes, including underlining, italics, blinking,
eight foreground/background colors, character position
offset delay, and background transparency, are made
possible through a fully customized 512 character set.
CP97TEL2500
Part
Number
Z90341
52-Pin Shrink DIP Package
4.5- to 5.5-Volt Operating Range
Z89C00 RISC Processor Core
0 C to +70 C Temperature Range
OTP
ROM
64K x 16
RAM
(Word)
1K x 16
Speed
(MHz)
12
P R E L I M I N A R Y
P
C
Z90341
DIGITAL TELEVISION CONTROLLER
Serial interfacing with the television tuner is provided
through the tuner serial port. Digital channel tuning
adjustments may be accessed through the industry-
standard I
Additional hardware provides the capability to display two
to three times normal size characters. The smoothing logic
contained in the on-screen display circuit improves the
appearance of larger fonts. Special circuitry can be
activated to improve the visibility of text by adding a right-
sided shadow effect to the characters.
Receiver functions such as color and volume can be
directly controlled by six 8-bit pulse width modulated
ports.
Notes:
All Signals with a preceding front slash, "/", are active Low, e.g.:
B//W (WORD is active Low); /B/W (BYTE is active Low, only).
Power connections follow conventional descriptions below:
RELIMINARY
USTOMER
Connection
Direct Closed Caption Decoding
TV Tuner Serial Interface
Customized Character Set
Character Control Mode
Directly Controlled Receiver Functions
V-Chip Decode
Ground
Power
2
C port.
P
ROCUREMENT
Circuit
GND
V
CC
S
PECIFICATION
Device
V
V
DD
SS
Z90341
1

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z90341 Summary of contents

Page 1

... Operating Range Z89C00 RISC Processor Core +70 C Temperature Range GENERAL DESCRIPTION The Z90341 is a member of Zilog's family of Digital Television Controllers designed to provide complete audio and video control of television receivers, video recorders, and advanced on-screen display facilities. The Z90341 features a powerful Z89C00 RISC processor core that controls on-board peripheral functions and registers using the standard processor instruction set ...

Page 2

... Register Addr/Data /Reset CPU ROM Addr ROM Data Functional Block Diagram PWM PWM1 PWM2 PWM3 PWM4 PWM5 PWM6 Port1 Port 10 Port 11 Port 12 Port 13 Port 14 Port 15 Port 16 Port 17 Port 18 I2C Port 01/11 SCL/MSCL2 SCD/MSCD2 Port 02/12 MSCL1 MSCD1 OSD V1(R) V2(G) V3(B) OTP ROM 64K X 16 CP97TEL2500 Z90341 ...

Page 3

... ADC5 AGND 22 AVCC 23 24 V3/B V2/B 25 V1/B 26 52-Pin Shrink DIP Configuration 52 Port15/B1 51 Port14/B0 Port13/G1 50 Port18/G0 49 Port08/R1 48 Port10/R0 47 PWM6/Hsync2 46 45 PWM5 44 PWM4 43 PWM3 42 PWM2 41 PWM1 40 AGNDX 39 VCC GND 38 37 XTAL2 36 XTAL1 35 /Reset 34 I2MSC1 33 I2MSD1 32 Port 0E Port11/I2CMSC2 31 Port12/I2CMSD2 30 29 VSync 28 HSync 27 Blank Z90341 3 ...

Page 4

... AGNDF is for LPF ground, and AGNDX is for XTAL circuit ground Z90341 52-Pin 39,22 38,21,15,40 2 16,17,18,19,20 46,45,44,43,42,41 23,32,7,3,4,5,6,48,8,9,18, 17,10,12,11,19 49,20,1,52,51,50,30, 31,47 11,31,34 12,30, 28, 24,25, – Z90341 Configuration Direction Reset PWR – PWR – BOD BOD ...

Page 5

... Condition Bit = 11 Bit = 10 Bit = 01 Bit = 00 70 Level, 10pf Load Condition Bit = 11 Bit = 10 Bit = 01 Bit = 00 70 Level, 10pf Load XTAL1 XTAL2 27k 32K Oscillator Recommended Circuit Limit 2.10 V 0.3 V 1.75 V 0.3 V 1.28 V 0.30 V 0.0 + 0.3V < Limit 1.90 V 0.30 V 1.60 V 0.30 V 1. 0.3 V < Z9034X Z90341 5 ...

Page 6

... All Push-Pull Digital Output mA One Pin mA All Pins mA One Pin mA All Pins C C Units Conditions 0. External Clock V Generator Driven V On XTAL1 Input Pin and Sleep Mode @ 32 KHz A Stop Mode CP97TEL2500 Z90341 ...

Page 7

... Zilog, Inc. 210 East Hacienda Ave. Campbell, CA 95008-6600 Telephone (408) 370-8000 Telex 910-338-7621 FAX 408 370-8056 Internet: http://www.zilog.com Z90341 Units Note Depends on Crystal Typical Units ...

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