Electronics World articles Popular Electronics articles QST articles Radio & TV News articles Radio-Craft articles Radio-Electronics articles Short Wave Craft articles Wireless World articles Google Search of RF Cafe website Sitemap Electronics Equations Mathematics Equations Equations physics Manufacturers & distributors Engineer Jobs LinkedIn Crosswords Engineering Humor Kirt's Cogitations Engineering Event Calendar RF Engineering Quizzes USAF radar shop Notable Quotes App Notes Calculators Education Engineering Magazines Engineering magazine articles Engineering software Engineering smorgasbord RF Cafe Archives RF Cascade Workbook 2018 RF Stencils for Visio RF & EE Shapes for Word Advertising RF Cafe Homepage Sudoku puzzles Thank you for visiting RF Cafe!
Innovative Power Products Combiners / Dividers

Parallel Port Pin-Out

EPP was created in 1991 to permit up to 2 Mbps data transfer, and was intended primarily for non-printers.
ECP was created in 1992 to permit higher speed printer communications.
IEEE1284 was created in 1994 to combine EEP and ECP, and relies on the host to determine which standard to use.

Standard Parallel Port (SPP) Enhanced Parallel Port (EPP) Extended Capabilities Port (ECP)
Signal NameCentronics
Signal NameDB-25
Signal NameDB-25
Strobe11Write1Host CLK1
Data 022Data 02Data 02
Data 133Data 13Data 13
Data 244Data 24Data 24
Data 355Data 35Data 35
Data 466Data 46Data 46
Data 577Data 57Data 57
Data 688Data 68Data 68
Data 799Data 79Data 79
Acknowledge1010Interrupt10Periph CLK10
Busy1111Wait11Periph ACK11
Paper End1212Spare12Ack Reverse12
Auto Line Feed1414Data Strobe14Host ACK14
Error3215Spare15Periph Request15
Initialize Printer3116Reset16Reverse Request16
Select Input3617Address Strobe171284 Active17
Strobe Return1918Ground18Ground18
Data 0 Return2019Ground19Ground19
Data 1 Return2119Ground20Ground20
Data 2 Return2220Ground21Ground21
Data 3 Return2320Ground22Ground22
Data 4 Return2421Ground23Ground23
Data 5 Return2521Ground24Ground24
Data 6 Return2622Ground25Ground25
Data 7 Return2722
Acknowledge Return2824
Busy Return2923
Paper End Return2824
Select Return2824
Auto Line Feed Return3025
Error Return2923
Initialize Printer Return3025
Select Input Return3025

Custom MMIC Distributed Amplifier Design - RF Cafe QuinStar Technology (Millimeter Wave Solutions) - RF Cafe
Windfreak Technologies Res-Net Microwave - RF Cafe
About RF Cafe
Kirt Blattenberger - RF Cafe Webmaster
Copyright: 1996 - 2024
    Kirt Blattenberger,

RF Cafe began life in 1996 as "RF Tools" in an AOL screen name web space totaling 2 MB. Its primary purpose was to provide me with ready access to commonly needed formulas and reference material while performing my work as an RF system and circuit design engineer. The Internet was still largely an unknown entity at the time and not much was available in the form of WYSIWYG ...

All trademarks, copyrights, patents, and other rights of ownership to images and text used on the RF Cafe website are hereby acknowledged.

My Hobby Website:  AirplanesAndRockets.com