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參數(shù)資料
| 型號： | Z86227 |
| 廠商： | ZiLOG, Inc. |
| 英文描述： | 40-PIN LOW-COST DIGITAL TELEVISION CONTROLLER (4LDTC) |
| 中文描述： | 40針低成本數(shù)字電視控制器（4LDTC） |
| 文件頁數(shù)： | 1/8頁 |
| 文件大?。?/td> | 65K |
| 代理商： | Z86227 |
1
Z86227
CPS DC-4074-01
GENERAL DESCRIPTION
Z86227
40-P
IN
L
OW
-C
OST
D
IGITAL
T
ELEVISION
C
ONTROLLER
(4LDTC)
The Z86227 40-pin Low-Cost Digital Television Controller
(4LDTC) introduces a new level of sophistication to single-chip
architecture. The Z86227 is a member of the Z8
single-chip
microcontroller family with 6 Kbytes of ROM and 236 bytes of
RAM. The device is offered in a 40-pin package and is CMOS
compatible. The 4LDTC offers mask programmed ROM which
enables the Z8 microcontroller to be used in a high volume
production application device embedded with a custom program
(customer supplied program) and combines together with the
Z86C27 (DTC) and Z86127 (LDTC) to provide support for high
end, mid range and low end TV applications.
Zilog’s 4LDTC offers fast execution, efficient use of memory,
sophisticated interrupts, input/output bit manipulation capabilities,
and easy hardware/software system expansion along with low
cost and low power consumption. The device provides an ideal
performance and reliability solution for consumer and industrial
television applications.
The Z86227 architecture is characterized by utilizing Zilog’s
advanced Superintegration design methodology. The device
has an 8-bit internal data path controlled by a Z8 microcontroller
and On Screen Display (OSD) logic circuits and Pulse Width
Modulators (PWM). On-chip peripherals include two register
mapped I/O ports (Ports 2 and Port 3), interrupt control logic (one
software, two external and three internal interrupts) and a standby
mode recovery input port (Port 3, pin P30).
The OSD control circuits support 6 rows by 20 columns of
characters. The character color is specified by row. One of the
eight rows is assigned to show two kinds of colors for bar type
displays such as volume control. The OSD is capable of displaying
either low resolution (5x7 dot pattern) or high resolution (11x15
dot pattern) characters.
A 14-bit PWM port provides enough voltage resolution for a
voltage synthesizer tuning system. Three 6-bit PWM ports are
used for controlling audio signal levels. Three
8-bit PWM ports used to vary picture levels.
The 4LDTC applications demand powerful I/O capabilities. The
Z86227 fulfills this with 24 pins dedicated to input or output.
These lines are grouped into three ports, and are configurable
under software control to provide timing, status signals, parallel
I/O and an address/data bus for interfacing to external memory.
There are three basic address spaces available to support this
wide range of configurations: Program Memory, Video RAM,
and Register File. The Register File is composed of 236 bytes of
general purpose registers, two I/O Port registers, 15 control and
status registers and three reserved registers.
To unburden the program from coping with the real-time problems
such as counting/timing and data communication, the 4LDTC
offers two on-chip counter/timers with a large number of user
selectable modes (Figure 1).
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:
Connection
Circuit
Device
Power
Ground
V
GND
V
DD
V
SS
DC 4074-01
(8-25-93)
C
USTOMER
P
ROCUREMENT
S
PECIFICATION
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| Z86227-04PSC | 40-PIN LOW-COST DIGITAL TELEVISION CONTROLLER (4LDTC) |
| Z86228 | LINE 21 CLOSED CAPTION CONTROLLER (L21C) |
| Z86233 | CMOS Z8 8K ROM CONSUMER CONTROLLER PROCESSOR |
| Z86243 | CMOS Z8 8K ROM CONSUMER CONTROLLER PROCESSOR |
| Z86250 | STARSIGHT DATABASEENGINE |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| Z86227-04PSC | 制造商:ZILOG 制造商全稱:ZILOG 功能描述:40-PIN LOW-COST DIGITAL TELEVISION CONTROLLER (4LDTC) |
| Z86228 | 制造商:ZILOG 制造商全稱:ZILOG 功能描述:LINE 21 CLOSED CAPTION CONTROLLER (L21C) |
| Z8622812PSC | 功能描述:多媒體雜項 LINE 21 DECODER RoHS:否 制造商:Texas Instruments 類型: 通道數(shù)量: 轉(zhuǎn)換速率:540 Mbps 分辨率: 封裝 / 箱體:SOIC-16 封裝:Tube |
| Z8622812PSG | 功能描述:多媒體雜項 LINE 21 DECODER RoHS:否 制造商:Texas Instruments 類型: 通道數(shù)量: 轉(zhuǎn)換速率:540 Mbps 分辨率: 封裝 / 箱體:SOIC-16 封裝:Tube |
| Z86229 | 制造商:ZILOG 制造商全稱:ZILOG 功能描述:NTSC LINE 21 CCD DECODER |
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