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PDF Z89301 Data sheet ( Hoja de datos )
| Número de pieza | Z89301 | |
| Descripción | DIGITAL TELEVISION CONTROLLER | |
| Fabricantes | Zilog. | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de Z89301 (archivo pdf) en la parte inferior de esta página. Total 8 Páginas | ||
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PRELIMINARY
Z89300/01
CPS DC-4166-00
PRELIMINARY
CUSTOMER PROCUREMENT SPECIFICATION
GENERAL DESCRIPTION
Z89300/01
DIGITAL TELEVISION CONTROLLER
The Z89300/01 Digital Television Controller is an
application- specific controller designed to provide
complete audio and video control of television receivers,
video recorders, and advanced on-screen display facilities.
The Z89301 is the one-time-programmable (OTP) version
of the Z89300.The powerful 12 MHz Z89C00 RISC
processor core allows the user to control the on-board
peripheral functions and registers using the standard
processor instruction set.
The extensive character attributes can be controlled in two
modes: by the on-screen display controller character
control mode for maximum display control flexibility, and
closed caption mode for optimum display of closed caption
text.
Closed caption text can be decoded directly from the
composite video signal with the assistance of the
processor's digital signal processing capabilities and
displayed on the screen. The character representation in
this mode allows for a simple attribute control through the
insertion of control characters, and each word of RAM
specifies two displayed characters.
The character control mode provides access to the full set
of attribute controls. Each word of RAM specifies a single
displayed character and basic character attributes, allowing
the modification of attributes on a character-by-character
basis. The insertion of control characters permits direction
of other character attributes.
The fully customized 512 character set, formatted in two
256 character banks, can be displayed with a host of
display attributes that incude underlining, italics, blinking,
eight foreground/background colors, character position
offset delay, and background transparency. The 16-bit
display character representation allows the modification of
some key attributes on a character-by-character basis. A
character's pixel array is stored as a 16- or 18-word
representation in Character Graphics ROM (CGROM).
The ROM contents are referenced by a 16-bit word stored
in video RAM (VRAM) defining the character type and its
key attributes.
Serial interfacing with the television tuner is provided
through the tuner serial port. Other serial devices, such as
digital channel tunning adjustments, may be accessed
through the industry standard I2C port.
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. Fringing circuitry can be
activated to improve the visibiity of text by surrounding the
character lines with a one-pixel border.
RGB outputs provide the direct video signals, and a
blanking output is provided to control the video multiplexor.
Dot clock and verticle line synchronization are normally
obtained from H_FLYBACK and V_FLYBACK, but can be
generated by the Z89300/01 and driven to the external
deflection unit through the bidirectional SYNC ports when
external video synchronization signals are not present.
User control can be monitored through the keypad scanning
port, or the 16-bit remote control capture register. Receiver
functions such as color and volume can be directly
controlled by eight 8-bit pulse width modulated ports.
All nine PWM ports are only available in the 52-pin package.
Only six 8-bit and one 14-bit PWM output pins are available
in the 40-pin package.
The Z89300/01 has two internal 12 MHz VCOs that are
referenced to a 32 KHz internal oscillator to provide the
system clock. In Sleep mode, the controller uses the 32
KHz clock for the system clock to reduce power
consumption. The processor can be suspended by placing
it into STOP mode when main power is not available for
minimal power consumption.
DC-4166-00 (8-3-93)
1
1 page  
PIN DESCRIPTIONS
Z89300 (continued)
PRELIMINARY
Z89300/01
CPS DC-4166-00
Pin
Name
Standard
Application
PORT0 [D]
PORT0 [E]
PORT0 [F]
/HalfBlnk
PORT1 [0]
PORT1 [1]
PORT1 [2]
PORT1 [3]
LED1_PWR
LED2_AUD
LED3_TMR
TV_VCR
52-Pin
28
5
36
40-Pin
-
-
-
18 14
19 15
20 16
21 17
I/O/B/
PWR
B
B
B
B
B
B
B
Reset Pad
Condition Type
O4
O4
O4
Description
O 4 Power LED Control
O 4 Mono/Stereo LED Control
O 4 Timer On/OFF LED Control
O 4 TV/Video Switch Control
Power & Power Mgmt
PORT1 [4]
PORT1 [5]
VCC
PWR_CTL
PWR_DET
+ 5 Volts
GND
0 Volts
22
23
17
38
10
40
XTAL2
XTAL1
LPF
LOOP FILTER
41
39
42
V1
V2
V3
BLANK
RED
GREEN
BLUE
BLANK
33
32
31
34
18 B
19 B
29 PWR
31 PWR
32 Analog
30 Analog
33 I
25 O
24 O
23 O
26 O
O 4 Power On/Off Control
4 Low Power Detect Input
Supply Power
Digital/Analog Ground
Oscillator
3 Oscillator Crystal Terminal 2
1 Oscillator Crystal Terminal 1
PLL Loop Filter
RGB Display
6+Analog Red Display Signal
6+Analog Green Dislay Signal
6+Analog Blue Display Signal
3 RGB Video Multipleor
Control Signal
HSYNC
VSYNC
IRIN
H_SYNC
V_SYNC
REMOTE
29 21
30 22
22
B
B
I
Display Synchronization
I 4 Horizontal Synchronization
Detect/Source
I 4 Vertical Synchronization
Source
1 Remote Control Capture
5
5 Page | ||
| Páginas | Total 8 Páginas | |
| PDF Descargar | [ Datasheet Z89301.PDF ] | |
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