Integrated Circuit Buses

Intel is coming out with a new uP bus called Common System Interface or CSI. The Common System Interface will also be used with FPGA's or other devices. CSI has been in development since around 2003, and is set to hit the market in 2008 with Intel's new processors. I have not yet found the standard that defines the CSI bus, so the page is some what weak... CSI is an IC Bus, so it will not drive a cable that I can tell. The CSI bus is linked of the Interface Bus 'C' page.

I also moved the ESDI bus to it's own page. The Enhanced Small Device Interface is an outdated Hard Drive interface rendered obsolete by the introduction of the IDE interface. ESDI is a Personal Computer Bus. and is linked of the Interface Bus 'E' page.

Of course SATA is the bus you want driving your hard drive, or Serial SCSI.

IC Memory Types

I added a page to cover Ovonics Unified Memory, which happen to be the same as Phase-change Memory IC's. Both types are listed off the sub-page for Non-Volatile Memory IC's. Both of these are new types of memory, so there are no manufacturers for either of these types of IC memories.

The main IC Memory page is listed here; IC Memory Types. I also updated the IC Memory Acronyms page, and the Engineering Acronyms 'On' page.

Should only be a few hundred more pages until I get the Google search bar added to all the pages...

Intelligent Platform Management Interface

Updated the buses used with the Intelligent Platform Management Interface [IPMI]. The Intelligent Platform Management Interface specification is the protocol portion of the standards.

The Intelligent Chassis Management Bus [ICMB] is used as a chassis to chassis interface that uses RS485 as the electrical layer.

The Intelligent Platform Management Bus [IPMB] interface is used within a particular chassis to communicate with the board controllers.

All three interface standards are listed off the Interface Buses 'I' listing.

Military Connector Specificatins

I added a new page to cover the insert arrangements for MIL 83513 connectors. The following link provides MIL83513 Pin locations. It's linked off the main MIL-DTL-83513 page that was added a while ago, but never updated. I did add a few words to the MIL-DTL-83513 page tonight, but just in passing, it's off the Military Connector specification page. I also added a page that covers MIL-83513 insert arrangements. I noticed that the MIL-DTL-32139 is out-of-date. Both of these Mil standard pages were just copies of the MIL D-sub manufacturers page, at MIL-C-24308. So I updated MIL32139 and added a page for part numbers and insert arrangemets.

Here is the listing of the main page for Manufacturers of Military Connectors. And the main page of Manufacturers of Connectors.

American Wire Gauge Table

Off the American Wire Gauge [AWG] page I added the following links;
A chart of different Wire Gauge standards,
AWG sizes in metric,
AWG table for 25C and 65C,
Equivalent Cross section of wire
Monel wire table,
Nichrome wire table,


Also under the Conversion page, I added these new links:
Table of Logarithms,
Square Centimeters to Square Inches Conversion Chart,
Centimeters to Inches Conversion Chart,
Grams to Ounces Conversion Chart.

All of these pages are holding charts or tables indicated by their page titles. The charts are picture files.

Brown and Sharpe Wire Gauge

I added a notes page to address the Brown and Sharpe company and its link to the American Wire Gauge. The link is off the main AWG page. Many pages on the web make note of the Brown and Sharpe table, but the reference is really outdated.

I also added a page which details the Right Hand Rule, linked off the Electronic Glossary page.

Also up-dated a few other pages;
Interface Buses, starting with the letter "C",
Engineering Abbreviations, letter "On",
Engineering Abbrevations, letter "Me",
Engineering Abbrevations, letter "Ma",
Engineering Abbrevations, letter "Ha"
Engineering Glossary of Terms, Letter "Es",
Engineering Glossary of Terms, Letter "Ja",

Most of these page up-dates were very minor.

Digital TV Channels

What are the new Digital TV channels, well here are the DTV channels. Keep in mind that TV stations do not have to transmit in High Definition TV [HDTV], they are only required to broad cast in digital [under the new rules from the FCC]. The DTV channel's page also indicates the frequency bands of operation.

The HDTV Display Technologies page was also up-dated, but only to display the new link. A link was also added from the Engineering Acronyms 'D' page.

The blog picture show the frequency bands that are being freed up by moving to Television transmitted in Digital format instead of the older analog format. These open frequency bands will be actioned off in January of 2008 ~ see the normal blog for more info, linked of the main interfacebus page.

External Memory Interface Description

I added a page to cover the External Memory Interface [EMIF]. The Asynchronous External Memory Interface (EMIF) bus is used in DSP and Digital Media System-on-Chip (DMSoC) ICs produced by Texas Instruments (TI).

I also updated the Firewire bus page to indicate the speed improvement from the up-coming release of the newest version.

I also up-dated a number of pages yesterday, but nothing to write about.....

EIB Interfacebus Description

I added the EIB page, which has a very brief description of the Element Interconnect Bus. The EIB interface is a internal IC bus used to connect functions within a Cell processor. Links were added to that new page from the IC Buses page, and the Buses by letter page; 'E' buses.

Also added a few new acronyms, the letter 'E' pages were updated:
Abbreviations and Acronyms, Ea,
Abbreviations and Acronyms, Eme,
Abbreviations and Acronyms, Ep,

TI DSP Interface Bus

A description of the Multichannel Buffered Serial Port [McBSP] has been added. The McBSP interface is used on Texas Instruments DSP processors, which may also be combined with an ARM processor. The McBSP is a serial bus, but has a number of lines. The link was added to the Integrated Circuit Buses page, and alphabetic listing of bus pages ~ 'M' Buses.

A number of page were also updated;
Engineering Acronyms H,
Engineering Acronyms He,
Engineering Acronyms Dm,
Engineering Acronyms Chi,
Engineering Acronyms V,
Engineering Acronyms Vg,

The Frequency Asked Questions pages was up-dated.

PC Mouse interface

Most interfaces for a PC mouse these days is via a USB port. But, I guess the PS/2 interface is still around. As the new Velocity Micro PC I just purchased came with a PS/2 interface, but shipped with a USB mouse.

Any how, I added two new pages to cover Computer mouse interfaces.
IBM PC Mouse interface, PS/2,
IBM PC Mouse interface, Serial Port,
Sun PC Mouse interface,
Apple PC Mouse interface, ADB,
JoyStick Pinout,
Keyboard pinout

Electronic Manufacturers

Reduced some of the pages that list engineering companies in alphabetic order. Splitting the pages in half to reduce the file size.

In addition to breaking up the pages, the html code was also slightly reduce by removing some unneeded html comments. The Google search bar was up-dated

Manufacturers 'Ba' to 'Bc',
Manufacturers 'Be' to 'Bh',
Manufacturers 'Bi' to 'Bk',
Manufacturers 'Bl' to 'Br',
Manufacturers 'Bro' to 'Bv',

Manufacturers 'Ga' to 'Gec',
Manufacturers 'Gen' to 'Gi',
Manufacturers 'Gl' to 'Glo',
Manufacturers 'Go' to 'Gu',

Manufacturers 'Va' to 'Vat',
Manufacturers 'Ve' to 'Vet',
Manufacturers 'Vi' to 'Vl',
Manufacturers 'Vm' to 'Vt',

HDMI AV interface

I updated the HDMI interface page, but not by much. I did add links to a TMDS page and a CEC page, both form part of the HDMI specification. However, both of those new pages are blank so far.

The HDMI interface seems to gaining a following in AV gear. Depending on what you read, HDMI is in competition with DisplayPort which was released this year. HDMI has been out for a number of years now.

The new HDMI 1.3 specification is a major advancement over older HDMI standards.

microUSB Interface

Added the Micro-USB interface page. Micro-USB is designed to replace the Mini-USB style connectors called out in the USB specification. Micro-USB is smaller than those of Mini-USB and are designed to fit on Cell phones and other mobile devices.

Added a page to cover Military Micro-D Sub connectors, MIL-DTL-83513. However, it's a blank page so it turns up in the site map being generated tonight. The MIL-DTL-83513 is added to the list of pages requiring update, and will be up-dated when time allows. Also added the MIL-DTL-32139 connectors page, same reason.

The main Military Connector Manufacturers page, Military D-sub Connector manufacturers page

Transmission Protocol Acronyms

A few new Acronyms were added to the Protocol Acronyms section, off the larger Electronic Engineering Acronyms section.

The original Protocol Acronyms page, becoming to large, was sub-divided into 3 smaller pages;



Protocol Acronyms 'A' to 'G'
Protocol Acronyms 'I' to 'N'
Protocol Acronyms 'P' to 'Z'

This is the main page of Electronic Dictionary & Acronyms listings

Manufacturers Listing

There is a group of pages on the web site that's provides all manufacturers in an alphabetic listing, rather than by product function. Currently that section comprises 90 pages, and growing. Some of the pages are being reduce in size by half, once I find the individual page has grown to large in size. I'm manually checking links, so there is a reason to review the pages.

A few years ago all the listings appeared on 6 very large pages. Then they were reduced to each letter of the alphabet. Now one letter may span several pages. Smaller pages result in a faster down load.

So the 'I' section of companies was up-dated today:
Manufacturers starting with "Ia",
Manufacturers starting with "Il",
Manufacturers starting with "In",
Manufacturers starting with "Inn",
Manufacturers starting with "Int",
Manufacturers starting with "Intel",

This is an alphabetic company listing of most of the Electronic manufacturer sites listed on this web site. You can also search for a company by product function, using the links at the top right of the page. Or you can use the icons below to search by product function.
There are a few companies listed here which are not listed on any of the other pages. Also; any company site which has gone bad is listed here [with the original URL] with a new address or link if it's available. The old [obsolete] reference of a site is removed from all other pages of the site.
As a rule only OEM [Original Equipment Manufacturer] Electronic manufacturers are listed, while value added sites are not. This is a listing of companies in the US, in addition to American Manufacturers, European Manufacturers, and Asian Manufacturers are also included.

Incorrect Page Address

The server statistics counter 'AWSTATS' provides a section called;
Required but not found URLs (HTTP code 404).

It's a list of page requests that returned a 404 code [not found] to the computer browser requesting that page. So far this month, the list contains 725 URLs. Many of the URLs are valid, so I figure it was hit while the server was off-line. However some page addresses are not valid.

Somebody in a news group posting links to a page on my site, but gets part of the address wrong. Another web site may get the address wrong.

Anyway, when I see a request for a wrong page address, I generate a page with that address to capture the incoming request. That way the person requesting the page sees a file alerting them to the correct address. Unfortunately some page requests can't be decoded to a live address.

Currently there are 120 html files on the server to capture incoming incorrect page addresses. Normally the pages don't see a lot of traffic once the news group posting falls off the main front page. But those postings are out there forever. All the holding pages are identical except the page address, title and the new link, if it's provided.

There also happen to be a lot of page requests with characters that don't decode well, so I let some go. Not going to load a .html.exe file to the server.

I added two more pages tonight, not going to list them ~ no reason to reinforce an incorrect page address.

Spacer & Standoff data

Taken from the main Mechanical Bolt Manufacturers page [covering Nuts, Bolts, and most other hardware]; I started a new page for Spacers and Stand-off manufacturers. Most manufactures produce all types of hardware so this was only done to provide a place to add common characteristics for stand-offs and Spacers.

Because of bandwidth issues I also added a new USB page to show the USB Cable Diagram. The original USB page still shows the cable cut-out but in a thumbnail instead of a full pick. So the gif file on that page went from 9K to 3K bytes. Only people that need to see the cable diagram need click the thumbnail to pull in the full 9k byte graphic. This assumes only some percentage of visitors will need that graphic, saving 6k bytes of server bandwidth ~ 240MB per month.

Ya know, I also noticed that the two graphics on the USB section were downloaded at different rates. There are sites out there that link to a gif, rather than a page. When they link to a gif the server sees the download, while the web site page is never viewed. So they take my pic file, and my bandwidth, but never give me a page hit ~ The visitor on the other site thinks the graphic is local. When I see this occurring I change the gif file name or trade it out with a site banner ~ so they down load the banner instead of the graphic.


I've also started to change the Google search bar so it defaults to search interfacebus.com first. However, at the same time some pages still don't have a search bar at all yet. At this point only about a dozen pages have been up-dated with the new search bar ~ looks the same.

Multi-Colored LEDs

Added a page listing Multi-colored LED manufacturers, listed off the main LED products page. Multi-colored LEDs are produced in either through-hole or surface-mount styles [more common].

Bi-color LEDs are more common than Tri-color LEDs, with surface mount being the common configuration. You may also see Tri-colored LEDs referred to as RGB LEDs [Red, Green, Blue].

Unlike a standard dual lead LED, multi-colored LEDs are three and four leaded devices. One lead being the common cathode or common anode, and the remaining three leads the anode or cathode [for common cathode devices].

SCSI Bus Trend

The original SCSI bus was released in 1984. Over these 20 years SCSI was up-graded a number of times raising it's throughput from SCSI-1 @ 5MB/s to 160MB/s for SCSI-5.

Any way I was updating web pages today based on when they were lasted reviewed. About half a dozen SCSI bus pages showed up with dates of 12/12/06. So I decided to take a look and see if those pages required an up-date ~ remember standards work stopped on a number of older SCSI standards [so the facts aren't changing].

I took a look at the SCSI page hits year to date, by month, and I noticed that the pages were only getting a few thousand hits combined. So 12 related SCSI bus topic pages only received 12,000 page views this year. That is real low for a major computer interface.

However; Serial SCSI [Serial Attached SCSI, or SAS] was released in 2003 which moved from a parallel interface to a serial interface ~ identical to SATA. The Serial SCSI interface jump the through put speed to 3Gbps, using a smaller cable.

So I realize the Parallel SCSI is in decline, but it seems that the trend is showing a massive decline, as shown in the chart.

Of the two main Hard Disk Driver interfaces [HDD], SCSI seems to be taking a harder hit then the IDE interface [ATA Bus] ~ which is also obsolete. The SCSI bus was also more expensive to implement than IDE, and SCSI tended to be integrated by high-end users so it stands to reason. Work stops on the SCSI standard and at the same time starts up on a new faster Serial SCSI ~ so you have no up-grade path. You have to move to the new Serial version of the bus.

IDE shows a hugh decline too, but not as massive

MIL-PRF-24758

There's not much there yet, but I added a page to cover MIL-PRF-24758. It's a military standard that specifies ship-board flexible weatherproof conduit. The page is listed under MIL-PRF-24758.

Electronic Capacitor Dictionary

I added several new pages to the Capacitor Dictionary, and a few new graphics.

The capacitor section increased from 4 pages to 11 pages. The capacitor terms can be found off the main Glossary listing.


Capacitor Terms 'A',
Capacitor Terms 'B' & 'C',
Capacitor Terms 'D',
Capacitor Terms 'E',
Capacitor Terms 'F' & 'G'
Capacitor Terms 'I' & 'L',
Capacitor Terms 'M' & 'N' & 'P',
Capacitor Terms 'Q' & 'R',
Capacitor Terms 'S',
Capacitor Terms 'T',
Capacitor Terms 'V' & 'W' & 'X' & 'Y' & 'Z',

Note; this listing was updated on 1/29/2010 as Indexed URLs by Google.
As these links were no longer being counted as external links.

Test Equipment

I took the Frequency Counter listing off the main Test Equipment Manufacturers page.
The new page is located on the Frequency Counter Manufacturers page.

DIMM Form Factors

This page provides the physical sizes of DIMM cards. The Memory Module Physical Sizes page really just accounts for DDR II or DDR III memory modules.

Older DIMM formats and SIMM formats are listed under the main Memory Module pinout page. SIMM cards are obsolete.

The top right of the Memory Module Form Factor page also provides links to all the other DIMM related pages;

• Interfacebus.com Home Page


• Memory Module Types


• Memory Module Pinouts


• Memory Module Definitions


• Memory Module Manufacturers


• VLP-DIMM Manufacturers


• DDR DIMM II Description


• DDR DIMM III Description


• FB-DIMM Description


• GDDR-DIMM Description


• DIMM Socket Manufacturers

FCIP Protocol Description

I also added a page to cover Fibre Channel over IP, or FCIP.

FCIP enable the transmission of Fibre Channel (FC) information by tunneling data between storage area network (SAN) facilities over IP networks

However; as of today the page is only a place holder, until I have time to update the information.

iSCSI Description

I added a page to cover iSCSI, or Internet SCSI.

iSCSI is really a protocol and not a physical bus, but I added under both the hardware buses and the protocol sections. iSCSI provides a mean of sending SCSI commands over an IP network.

The original SCSI interface is a physical parallel interface bus. The latest version, although not back-ward compatible is called Serial SCSI or SAS 'Serial Attached SCSI.

ST-Bus

I added a page to cover the Serial Telcom Bus, or ST-Bus.

A serial Bus standard from Zarlink. The page only has a few paragraphs just now, but I do provide a link to Zarlink specification in pdf format. I'm giving just enough data to tell what type of serial interface it is until I have time to get back and enhance the page

Analog Audio ICs

I split the analog IC Manufacturers page into three sections;
General Analog ICs, the main page;
IC Codec Manufacturers,
Modem IC Manufacturers.

Each of the sub-pages were derived from the main Audio IC page. All the IC manufactures links seemed to still be working.

A Codec is similar to a ADC, A-to-D converters are listed on the A to D and D to A Converter ICs page.

Annular Ring

I noticed the Blog feed stats was showing a few hits for these search terms;
Annular Ring: 50 hits
Annular Rings: 5 hits
Minimum Annular Ring: 4 hits

So I added this page to cover the Minimum Annular Ring definition. Than a second page to cover odd shaped PCB Pads.

Diode Pages

I up-loaded two new pages to cover diodes tonight.
One page covers Diode Types, while the other page covers Zener Diodes.

Both of these page are new so I'll need to up-load more data, but the pages are stared and that's what counts.

I made the graphic because I can never tell which lead is which. The issue just came up with an LED; which end is the short end or which end is the long lead. I don't know, so I made some graphic files to solve the issue.

Page additions to interfacebus

A few pages have been added to the Glossary section of the web site.

LED Terms; to describe some of the terms for Light Emitting Diodes.

Diode Terms; really a description of the different types of diodes.

Compliant Pins; A description of what a compliant pin is.

Resistor Networks; Schematics for a few different types

Protocol Acronyms;

PON Acronyms; Covering Passive Optical Networks.

For page additions that predate this, refer to the older page up-date blog;