- 您现在的位置：买卖IC网 > PDF目录371012 > MC144144P (MOTOROLA INC) Digital Signal Processors 44-JLCC -55 to 125 PDF资料下载
参数资料
| 型号： | MC144144P |
| 厂商： | MOTOROLA INC |
| 元件分类： | 颜色信号转换 |
| 英文描述： | Digital Signal Processors 44-JLCC -55 to 125 |
| 中文描述： | COLOR SIGNAL DECODER, PDIP18 |
| 封装： | PLASTIC, DIP-18 |
| 文件页数： | 43/44页 |
| 文件大小： | 565K |
| 代理商： | MC144144P |
第1页第2页第3页第4页第5页第6页第7页第8页第9页第10页第11页第12页第13页第14页第15页第16页第17页第18页第19页第20页第21页第22页第23页第24页第25页第26页第27页第28页第29页第30页第31页第32页第33页第34页第35页第36页第37页第38页第39页第40页第41页第42页当前第43页第44页
MC144144
43
MOTOROLA
and EOF interrupts will be cleared at the end of the field in
which they occurred.
Interrupt Mask Register Script Files
INTRD
INTRLK
INTRX
INTRC
{c7,02}
{c7,08}
{c7,20}
{c7,12}
* set DLE active
* set dLOK active
* set dXDS active
* set DLE & dC/T active
SPI OPERATION
The serial port of the MC144144 may be configured to op-
erate as an SPI interface. The MC144144 always acts as the
slave device with the master generating the required clock
and input data signals. The accompanying C language pro-
grams enable a PC to perform as the SPI master device of
an application. The PC communicates with the MC144144
through its parallel port. These programs are not intended as
examples of how to program the application but are only pro-
vided as a means of illustrating the serial control process.
The two programs provided, SEROUT and SCRIPT the
SPI equivalent to the I2C programs IICO and SCRIPTI, re-
spectively. These programs have been compiled and run sat-
isfactorily with the MC144144 in a test board. Compiled
versions are available on disk.
SEROUT Program
This program will send one byte to the MC144144 without
checking the status of the READY bit. The program returns
the contents of the serial status (SS) register after the com-
mand has been entered. When the program is active the
screen will display:
SPI Command Byte >
The user may enter any valid one byte command and then
hit the ENTER key. The screen will then display the byte en-
tered and the SS register contents as follows:
SPI Byte = 00
SPI Return Val = 83h
The illustration above shows the NOP command was en-
tered. The SS register contents, 83h, indicates that the RDY,
FLD, and LOCK bits are “ones” indicating that the serial port
is ready for further input, that the input video signal was in
Field 1 at the time the status was read and that the part is
operating in video lock mode.
When this program is used a modified version of the
RESET can only be used. It is entered as two 1–byte com-
mands, FB and 00.
The SEROUT program is exited by entering a Control C
(^C) character.
SCRIPT Program
This program is designed to send any number of one or
two byte commands to the MC144144. The list of commands
to be executed are contained in Script files that have the ex-
tension .SER. The Script files used with the I2C version,
SCRIPTI, can be used with this program.
The program is invoked by typing:
S File_name <ENTER>
* File_name without the .SER
extension
The screen will display:
EEG CCD2 Serial Interface Script Player
Version x.xx
Script File Done
When all the commands in the file have been successfully
sent to the MC144144, the PC will return to the system
prompt.
The program checks the RDY status before sending each
byte. If, during the entry of a command, the RDY bit is not
found to be a “one”, the program will report the contents of
the SS register and then continue checking for RDY.
相关PDF资料 |
PDF描述 |
|---|---|
| MC14415DW | Digital Signal Processors 40-CDIP SB -55 to 125 |
| MC14415FL | Quad Precision Timer/Driver |
| MC14415FP | Quad Precision Timer/Driver |
| MC14415VL | Digital Signal Processors 68-CPGA -55 to 125 |
| MC14415VP | Digital Signal Processors 68-LCCC -55 to 125 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| MC14415FP | 制造商:Motorola Inc 功能描述: |
| MC14416P | 制造商:Motorola Inc 功能描述: 制造商:Motorola Inc 功能描述:TIME-SLOT ASSIGNER, 22 Pin, Plastic, DIP |
| MC14419P | 制造商:Motorola Inc 功能描述:ENCODER, 16 Pin, Plastic, DIP |
| MC14433P | 制造商:Motorola Inc 功能描述: |
| MC1443G | 制造商:Motorola Inc 功能描述: |
发布紧急采购，3分钟左右您将得到回复。