P7001: Difference between revisions

Line 78:

[[File:Tek_P7001_Buspriority.jpg|200px|thumb|right|Bus Priority of a fully equipped P7001]]

==Asynchronus Bus==

===Asynchronus Bus===

To provide maximum flexibility all P7001 circuit cards are connected over an 16 bit asynchronous bus with 13 address lines. The bus is mostly implemented as etched lines on the Main Interface Board. Only some High speed signals are sent through coaxial cables that connect to the cards using [[Peltola connector]]s. A serially connected line, or daisy chain, in the bus establishes device priority. This signal is called "Data Channel Grant Line". Each card has a specific location in the DPO. The position determines the priority that each card has in the use of the address and data buses. Unused slots must be fitted with a jumper card to close the daisy chain.

==Memory==

===Memory===

Several types of memory configurations were available: 1k, 2k, 3k or 4k semiconductor memory and also 4k non-volatile core memory. All configurations were available through the whole lifecycle of the P7001. The memory serves to store the acquired waveforms and their associated scale factors. It also stores the computer output for display. Depending on the configuration the following storing capabilites are available:

Line 126:

<nowiki>*</nowiki> Removing the Readout-Interface card doubles the space for storing waveforms but eliminates the capability of displaying text information.

==Readout Interface==

===Readout Interface===

There are two readout devices in the DPO. One is the readout board in the acquisition unit of the 7704A and the other is the readout interface card in the P7001. In the modes "PLUG-INS" or "STORE" all readout information displayed on the CRT come directly from the plugins. In "STORE" mode the readout interface digitizes these information, converts them to ASCII-data and stores it in memory. In the modes "BOTH" or "MEMORY" the readout interface converts the ASCII data back to readout information and displays them on the CRT.

==Display Generator==

===Display Generator===

The Display Generator card generates the CRT display of either real-time computer output (XY mode) or data stored in the processsors memory (XT mode). Any combination of the stored and acquired waveforms may be displayed simultaneously. Also, since the display generator operates independent of other devices, changing data may be viewed during a store operation. The Display Generator card has a set of jumpers which switch the CRT output between vector and dot display.

==External Interfaces==

===Hardware Signal Averager===

The external interface card provides a bilateral link between the P7001 and an external controller. The controller has full access to all programmable functions in the Processor, and the P7001, in turn, may interrupt the controller at any time. During the production time of the P7001, the following interfaces were developed:

For DPOs which are connected via the fast CP bus, it is no problem to transfer several data sets over the interface and then have the computer calculate the averaged waveform. But with the relatively slow interfaces like GPIB this procedure is impractical. The optional HSA card solves this problem by locally computing the averaged waveform of up to 4096 single waveforms. The HSA card also has the ability to calculate the histogram of a waveform. The histogram will be displayed horizontally at the lower third of the CRT.

===External Interfaces===

The external interface card provides a bilateral link between the P7001 and an external controller. The controller has full access to all programmable functions in the Processor, and the P7001, in turn, may interrupt the controller at any time. During the production time of the P7001, the following interfaces were gradually developed:

{| class="wikitable"

@@ Line 78: / Line 78: @@
 [[File:Tek_P7001_Buspriority.jpg|200px|thumb|right|Bus Priority of a fully equipped P7001]]
-==Asynchronus Bus==
+===Asynchronus Bus===
 To provide maximum flexibility all P7001 circuit cards are connected over an 16 bit asynchronous bus with 13 address lines. The bus is mostly implemented as etched lines on the Main Interface Board. Only some High speed signals are sent through coaxial cables that connect to the cards using [[Peltola connector]]s. A serially connected line, or daisy chain, in the bus establishes device priority. This signal is called "Data Channel Grant Line". Each card has a specific location in the DPO. The position determines the priority that each card has in the use of the address and data buses. Unused slots must be fitted with a jumper card to close the daisy chain.
-==Memory==
+===Memory===
 Several types of memory configurations were available: 1k, 2k, 3k or 4k semiconductor memory and also 4k non-volatile core memory. All configurations were available through the whole lifecycle of the P7001. The memory serves to store the acquired waveforms and their associated scale factors. It also stores the computer output for display. Depending on the configuration the following storing capabilites are available:
@@ Line 126: / Line 126: @@
 <nowiki>*</nowiki> Removing the Readout-Interface card doubles the space for storing waveforms but eliminates the capability of displaying text information.
-==Readout Interface==
+===Readout Interface===
 There are two readout devices in the DPO. One is the readout board in the acquisition unit of the 7704A and the other is the readout interface card in the P7001. In the modes "PLUG-INS" or "STORE" all readout information displayed on the CRT come directly from the plugins. In "STORE" mode the readout interface digitizes these information, converts them to ASCII-data and stores it in memory. In the modes "BOTH" or "MEMORY" the readout interface converts the ASCII data back to readout information and displays them on the CRT.
-==Display Generator==
+===Display Generator===
 The Display Generator card generates the CRT display of either real-time computer output (XY mode) or data stored in the processsors memory (XT mode). Any combination of the stored and acquired waveforms may be displayed simultaneously. Also, since the display generator operates independent of other devices, changing data may be viewed during a store operation. The Display Generator card has a set of jumpers which switch the CRT output between vector and dot display.
-==External Interfaces==
+===Hardware Signal Averager===
-The external interface card provides a bilateral link between the P7001 and an external controller. The controller has full access to all programmable functions in the Processor, and the P7001, in turn, may interrupt the controller at any time. During the production time of the P7001, the following interfaces were developed:
+For DPOs which are connected via the fast CP bus, it is no problem to transfer several data sets over the interface and then have the computer calculate the averaged waveform. But with the relatively slow interfaces like GPIB this procedure is impractical. The optional HSA card solves this problem by locally computing the averaged waveform of up to 4096 single waveforms. The HSA card also has the ability to calculate the histogram of a waveform. The histogram will be displayed horizontally at the lower third of the CRT.
+===External Interfaces===
+The external interface card provides a bilateral link between the P7001 and an external controller. The controller has full access to all programmable functions in the Processor, and the P7001, in turn, may interrupt the controller at any time. During the production time of the P7001, the following interfaces were gradually developed:
 {| class="wikitable"

P7001: Difference between revisions

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