Difference between revisions of "RP11 disk controller"
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* [http://www.bitsavers.org/pdf/dec/unibus/DEC-11-HRPCA-C-D_RP11-C_Maint_Aug74.pdf RP11-C disk pack drive controller maintenance manual] (DEC-11-HRPCA-C-D) | * [http://www.bitsavers.org/pdf/dec/unibus/DEC-11-HRPCA-C-D_RP11-C_Maint_Aug74.pdf RP11-C disk pack drive controller maintenance manual] (DEC-11-HRPCA-C-D) | ||
| + | * [http://www.bitsavers.org/pdf/dec/disc/rp02_rp03/pictures/RP11-C.jpg RP11-C] - image of interior | ||
* [http://www.bitsavers.org/pdf/dec/unibus/RP11_schem_Sep74.pdf RP11 Disk Control Interface Engineering Drawings] | * [http://www.bitsavers.org/pdf/dec/unibus/RP11_schem_Sep74.pdf RP11 Disk Control Interface Engineering Drawings] | ||
[[Category: UNIBUS Storage Controllers]] | [[Category: UNIBUS Storage Controllers]] | ||
Latest revision as of 19:23, 10 February 2024
The RP11 disk controller for the UNIBUS is for the earlier RP removable pack multi-platter moving-head magnetic disk drives (RP02-RP03). (The later RP04-RP06 drives are un-related - they include integral controllers, and connect to the MASSBUS.)
The only version of the RP11 is the RP11-C. Like many of the earlier large device controllers for the PDP-11, the RP11-C was a group of large custom wire-wrapped backplanes which bolted into the front of a 19 inch rack, such as an H960; into it plugged about 200 small M-Series FLIP CHIPs.
The backplane was wired for connection to a standard DEC indicator panel, which came standard with an RP11-C, mounted in the top of the rack the RP11-C backplane was mounted in.
Contents
- 1 Device registers
- 1.1 776710: Device Status Register (RPDS)
- 1.2 776712: Error Register (RPER)
- 1.3 776714: Control Status Register (RPCS)
- 1.4 776716: Word Count Register (RPWC)
- 1.5 776720: Bus Address Register (RPBA)
- 1.6 776722: Cylinder Address Register (RPCA)
- 1.7 776724: Disk Address Register (RPDA)
- 1.8 776726: Maintenance Register 1 (RPM1)
- 1.9 776730: Maintenance Register 2 (RPM2)
- 1.10 776732: Maintenance Register 3 (RPM3)
- 1.11 776734: Selected Unit Cylinder Address (SUCA)
- 1.12 776736: Silo Memory (SILO)
- 2 External links
Device registers
| Register | Abbreviation | Address |
|---|---|---|
| Device Status Register | RPDS | 776710 |
| Error Register | RPER | 776712 |
| Control Status Register | RPCS | 776714 |
| Word Count Register | RPWC | 776716 |
| Bus Address Register | RPBA | 776720 |
| Cylinder Address Register | RPCA | 776722 |
| Disk Address Register | RPDA | 776724 |
| Maintenance 1 Register | RPM1 | 776726 |
| Maintenance 2 Register | RPM2 | 776730 |
| Maintenance 3 Register | RPM3 | 776732 |
| Selected Unit Cylinder Address | SUCA | 776734 |
| Silo Memory | SILO | 776736 |
Note that the RP11 responds to addresses from 0776700 up to 0776736, but there are no registers in the range 0776700 to 0776706.
776710: Device Status Register (RPDS)
| SU RDY | SU OL | SU RP03 | HNF | SU SI | SU SU | SU FU | SU WP | ATTN | |||||||
| 15 | 14 | 13 | 12 | 11 | 10 | 09 | 08 | 07 | 06 | 05 | 04 | 03 | 02 | 01 | 00 |
776712: Error Register (RPER)
| WPV | FUV | NXC | NXT | NXS | PROG | FMTE | MODE | LPE | WPE | CSME | TIMEE | WCE | NXME | EOP | DSK ERR |
| 15 | 14 | 13 | 12 | 11 | 10 | 09 | 08 | 07 | 06 | 05 | 04 | 03 | 02 | 01 | 00 |
776714: Control Status Register (RPCS)
| ERR | HE | ATE | MODE | HDR | DRV SEL | RDY | IDE | MEM EX | COM | GO | |||||
| 15 | 14 | 13 | 12 | 11 | 10 | 09 | 08 | 07 | 06 | 05 | 04 | 03 | 02 | 01 | 00 |
776716: Word Count Register (RPWC)
| WC15 <---> WC00 | |||||||||||||||
| 15 | 14 | 13 | 12 | 11 | 10 | 09 | 08 | 07 | 06 | 05 | 04 | 03 | 02 | 01 | 00 |
776720: Bus Address Register (RPBA)
| BA15 <---> BA00 | |||||||||||||||
| 15 | 14 | 13 | 12 | 11 | 10 | 09 | 08 | 07 | 06 | 05 | 04 | 03 | 02 | 01 | 00 |
776722: Cylinder Address Register (RPCA)
| Unused | CYLINDER 08 <---> 00 | ||||||||||||||
| 15 | 14 | 13 | 12 | 11 | 10 | 09 | 08 | 07 | 06 | 05 | 04 | 03 | 02 | 01 | 00 |
776724: Disk Address Register (RPDA)
| Unused | TRACK | CURRENT SECTOR | SECTOR | ||||||||||||
| 15 | 14 | 13 | 12 | 11 | 10 | 09 | 08 | 07 | 06 | 05 | 04 | 03 | 02 | 01 | 00 |
776726: Maintenance Register 1 (RPM1)
| Unused | SILO OUT RDY | SILO IN RDY | CTL | SET HD | SET CYL | BUS OUT 07 <---> 00 | |||||||||
| 15 | 14 | 13 | 12 | 11 | 10 | 09 | 08 | 07 | 06 | 05 | 04 | 03 | 02 | 01 | 00 |
776730: Maintenance Register 2 (RPM2)
| MAINT CYL ADDR 07 <---> 00 | MAINT ATTN 07 <---> 00 | ||||||||||||||
| 15 | 14 | 13 | 12 | 11 | 10 | 09 | 08 | 07 | 06 | 05 | 04 | 03 | 02 | 01 | 00 |
776732: Maintenance Register 3 (RPM3)
| MAINT RO | MAINT RDY | MAINT ONL | MAINT IDX | MAINT UNS | MAINT INC | MAINT EOC | MAINT SEC | Unused | MAINT CLK | ||||||
| 15 | 14 | 13 | 12 | 11 | 10 | 09 | 08 | 07 | 06 | 05 | 04 | 03 | 02 | 01 | 00 |
776734: Selected Unit Cylinder Address (SUCA)
| Unused | CYLINDER 08 <---> 00 | ||||||||||||||
| 15 | 14 | 13 | 12 | 11 | 10 | 09 | 08 | 07 | 06 | 05 | 04 | 03 | 02 | 01 | 00 |
776736: Silo Memory (SILO)
| SM15 <---> SM00 | |||||||||||||||
| 15 | 14 | 13 | 12 | 11 | 10 | 09 | 08 | 07 | 06 | 05 | 04 | 03 | 02 | 01 | 00 |
External links
- RP11-C disk pack drive controller maintenance manual (DEC-11-HRPCA-C-D)
- RP11-C - image of interior
- RP11 Disk Control Interface Engineering Drawings
