Difference between revisions of "PC11 High-Speed Paper-Tape Reader/Punch Control"
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| + | [[Image:PC11-M781.jpg|thumb|right|250px|M781 version]] | ||
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The '''PC11''' is the [[UNIBUS]] [[device controller]] for the [[PC04/PC05 High-Speed Paper-Tape Reader/Punch|PC05]] [[paper tape]] high-speed reader/punch. It uses [[programmed I/O]], with [[interrupt]]s when it is ready for/with more data. | The '''PC11''' is the [[UNIBUS]] [[device controller]] for the [[PC04/PC05 High-Speed Paper-Tape Reader/Punch|PC05]] [[paper tape]] high-speed reader/punch. It uses [[programmed I/O]], with [[interrupt]]s when it is ready for/with more data. | ||
| − | There are two versions, both of which plug into an [[Small Peripheral Controller|SPC]] slot. The first is a [[DEC card form factor|dual]] card, the M781, which is used with an [[M105 Address Selector]] and an [[M782 Interrupt Control]] (both tall singles). The second is a single quad board, the M7810. | + | [[Image:PC11-M7810.jpg|thumb|right|250px|M7810 version]] |
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| + | There are two versions, both of which plug into an [[Small Peripheral Controller|SPC]] slot. The first is a [[DEC card form factor|dual]] card, the M781, which is used with an [[M105 Address Selector]] and an [[M782 Interrupt Control]] (both tall singles). The second is a single quad board, the M7810. | ||
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| + | [[Image:BC08J.jpg|thumb|250px|right|BC08J cable]] | ||
| − | A pair of cables (one for the reader, one for the punch - to support reader-only or punch-only options) connect | + | A pair of cables (one for the reader, one for the punch - to support reader-only or punch-only options) connect the controller to the device. The cables are different between the two versions of the PC11; the first has H807 connectors on the side of the controller card, into which small [[printed circuit board|PCBs]] with plated contact fingers plug; the second version uses BC08J cables, with a pair of female-shell/male-pin [[Berg connector]]s on the controller card. |
==Registers== | ==Registers== | ||
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The PPB does not respond to 'read' cycles on the UNIBUS. | The PPB does not respond to 'read' cycles on the UNIBUS. | ||
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| + | ==External links== | ||
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| + | * [http://www.bitsavers.org/pdf/dec/unibus/PC11_Reader-Punch_Manual.pdf PC11 high-speed reader/punch and control manual] (EK-PC11-TM-003) | ||
| + | * [https://manx-docs.org/collections/hcps/PC11.pdf PC11 reader/punch control engineering drawings] | ||
| + | * [https://www.pdp-11.nl/peripherals/tape/pc05-info.html PC11 controller] | ||
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| + | [[Category: UNIBUS Peripherals]] | ||
Latest revision as of 07:02, 28 February 2023
The PC11 is the UNIBUS device controller for the PC05 paper tape high-speed reader/punch. It uses programmed I/O, with interrupts when it is ready for/with more data.
There are two versions, both of which plug into an SPC slot. The first is a dual card, the M781, which is used with an M105 Address Selector and an M782 Interrupt Control (both tall singles). The second is a single quad board, the M7810.
A pair of cables (one for the reader, one for the punch - to support reader-only or punch-only options) connect the controller to the device. The cables are different between the two versions of the PC11; the first has H807 connectors on the side of the controller card, into which small PCBs with plated contact fingers plug; the second version uses BC08J cables, with a pair of female-shell/male-pin Berg connectors on the controller card.
Contents
Registers
The two versions are programming-compatible. The device has four control registers, which can be configured to any four sequential word locations in the I/O page; it is normally configured to addresses 777550-777556:
| Register | Abbreviation | Address |
|---|---|---|
| Paper-Tape Reader Status Register | PRS | 777550 |
| Paper-Tape Reader Buffer Register | PRB | 777552 |
| Paper-Tape Punch Status Register | PPS | 777554 |
| Paper-Tape Punch Buffer Register | PPB | 777556 |
In the register contents (below), bits which are read/write or unused are shown in normal font, those which are read-only are in italics, and write-only in bold.
Reader Status Register (PRS)
| ERR | Unused | BUSY | Unused | DONE | INT ENB | Unused | RDR ENB | ||||||||
| 15 | 14 | 13 | 12 | 11 | 10 | 09 | 08 | 07 | 06 | 05 | 04 | 03 | 02 | 01 | 00 |
Reader Buffer Register (PRB)
| Unused | Input Data | ||||||||||||||
| 15 | 14 | 13 | 12 | 11 | 10 | 09 | 08 | 07 | 06 | 05 | 04 | 03 | 02 | 01 | 00 |
Punch Status Register (PPS)
| ERR | Unused | RDY | INT ENB | Unused | |||||||||||
| 15 | 14 | 13 | 12 | 11 | 10 | 09 | 08 | 07 | 06 | 05 | 04 | 03 | 02 | 01 | 00 |
Punch Buffer Register (PPB)
| Unused | Output Data | ||||||||||||||
| 15 | 14 | 13 | 12 | 11 | 10 | 09 | 08 | 07 | 06 | 05 | 04 | 03 | 02 | 01 | 00 |
The PPB does not respond to 'read' cycles on the UNIBUS.
