Difference between revisions of "KDJ11-A CPU"
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A limited amount of configuration can be done with a set of nine jumpers (in the middle of the card).Their functions are: | A limited amount of configuration can be done with a set of nine jumpers (in the middle of the card).Their functions are: | ||
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! Jumper !! Function !! In || Out | ! Jumper !! Function !! In || Out | ||
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Powerup options are: | Powerup options are: | ||
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! W3 !! W7 !! Action | ! W3 !! W7 !! Action | ||
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| Out || Out || PC=configuration jumpers, PS=340 | | Out || Out || PC=configuration jumpers, PS=340 | ||
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| + | ==External links== | ||
| + | |||
| + | * [http://www.bitsavers.org/pdf/dec/pdp11/1173/EK-KDJ1A-UG-002_KDJ11-A_CPU_Module_Users_Guide_2ed_Jun86.pdf KDJ11-A CPU Module User's Guide] (EK-KDJ1A-UG-002) | ||
| + | * [http://www.bitsavers.org/pdf/dec/pdp11/1173/MP01890_KDJ11-A_Jan84.pdf KDJ11-A Field Maintenance Print Set] (MP01890-01) | ||
{{PDP-11}} | {{PDP-11}} | ||
Revision as of 14:50, 23 November 2021
The KDJ11-A CPU board (M8192) is the first QBUS PDP-11 CPU card using the J-11 chip set. It is a dual-height board, and was used to upgrade PDP-11/23 systems. (Confusingly, no DEC 'PDP-11/xx' system is specified as using the KDJ11-A.)
It contains an 8K-byte write-through cache (set size 1, block size 1 16-bit word), protected by parity; cache control logic inspects DMA transfers on the QBUS and invalidates cache entries for main memory which is written to by a device.
It also provides a set of diagnostic LEDs, and a line time clock; but no other devices (boot PROM, serial line, etc). Both the LTC, and its control register, are enabled by a single configuration jumper (below).
Although the J-11 does implement FP11 floating-point, the board can also use the optional FPJ11 floating point accelerator chip; note that only the -YB version of the board operates correctly with the FPJ11.
Configuration
A limited amount of configuration can be done with a set of nine jumpers (in the middle of the card).Their functions are:
| Jumper | Function | In | Out |
|---|---|---|---|
| W1 | Bootstrap address bit 15 | 1 | 0 |
| W2 | Bootstrap address bit 14 | 1 | 0 |
| W3 | Powerup option bit 2 | ||
| W4 | Bootstrap address bit 13 | 1 | 0 |
| W5 | Halt enable | Halt | Trap to 4 |
| W6 | Bootstrap address bit 12 | 1 | 0 |
| W7 | Powerup option bit 1 | ||
| W8 | Wakeup circuit | Disabled | Enabled |
| W9 | BEVNT/LTC register | Disabled | Enabled |
Powerup options are:
| W3 | W7 | Action |
|---|---|---|
| In | In | PC from 024, PS from 026 |
| In | Out | ODT, PS=0 |
| Out | In | PC=0173000, PS=340 |
| Out | Out | PC=configuration jumpers, PS=340 |
External links
- KDJ11-A CPU Module User's Guide (EK-KDJ1A-UG-002)
- KDJ11-A Field Maintenance Print Set (MP01890-01)
| v • d • e PDP-11 Computers and Peripherals |
|---|
| UNIBUS PDP-11s - PDP-11/20 • PDP-11/15 • PDP-11/35 • PDP-11/40 • PDP-11/45 • PDP-11/50 • PDP-11/55 • PDP-11/70 PDP-11/05 • PDP-11/10 • PDP-11/04 • PDP-11/34 • PDP-11/60 • PDP-11/44 • PDP-11/24 • PDP-11/84 • PDP-11/94 QBUS PDP-11s - PDP-11/03 • PDP-11/23 • PDP-11/23+ • MicroPDP-11/73 • MicroPDP-11/53 • MicroPDP-11/83 • MicroPDP-11/93 QBUS CPUs: LSI-11 • LSI-11/2 • KDF11-A • KDF11-B • KDJ11-A • KDJ11-B • KDJ11-D • KDJ11-E Buses: UNIBUS • UNIBUS map • SPC • MUD • EUB • QBUS • CD interconnect • PMI Also: PDP-11 architecture • PDP-11 Extended Instruction Set • FP11 floating point • PDP-11 Memory Management |
| UNIBUS CPUs: KA11 • KC11 • KB11-A • KB11-B • KB11-C • KB11-D • KD11-A • KD11-B • KD11-D • KD11-E • KD11-EA • KD11-K • KD11-Z • KDF11-U
Co-processors: FP11-A • FP11-B • FP11-C • FP11-E • FP11-F • KE44-A • FPF11 Chips: LSI-11 • KEV11-A • KEV11-B • KEV11-C • F-11 • KEF11-A • KTF11-A • T-11 • J-11 • FPJ11 CPU options: KE11-E • KE11-F • KJ11-A • KT11-C • KT11-D • KK11-A • KK11-B • KT24 • KTJ11-B Rare CPU options: KS11 Memory Protection and Relocation option • KT11-B Paging Option • KUV11 Writeable Control Store Front panels: KY11-A • KY11-D • KY11-J • KY11-LA • KY11-LB • KY11-P More on buses: UNIBUS and QBUS termination • Bus Arbitration on the Unibus and QBUS • CTI BUS PDT-11s - PDT-11/110 • PDT-11/130 • PDT-11/150 CTI PDP-11s - PRO-325 • PRO-350 • PRO-380 Other: FIS floating point • PDP-11 Commercial Instruction Set • PDP-11 stacks • PDP-11 family differences |
