Difference between revisions of "KDJ11-E CPU"
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Revision as of 21:27, 11 October 2022
The KDJ11-E CPU board (M8981) is the third-generation QBUS CPU card using the J-11 chip set of the PDP-11 (the first and second being the the KDJ11-A and KDJ11-B). It is a quad-height board, and is used in the PDP-11/93 and PDP-11/94 systems.
Its principal improvement over the KDJ11-B is that either the first 2M-byte, or its entire 4M-byte main memory (depending on the exact model) is on-board, and operates at the speed of the cache in the KDJ11-B. The KDJ11-E therefore omits the cache found on the earlier boards. The on-board memory is protected by parity only.
It also provides a Time-Of-Year clock (with battery backup), an 800 Hz programmable clock, and seven additional asynchronous serial lines.
Like the KDJ11-B, it also provides a built-in serial console, and ROMs to contain diagnostic and boot programs, and an EEPROM to contain configuration information. Also like the earlier boards, it uses the FPJ11 floating point accelerator to speed up the FP11 implementation in the J-11; the FPJ11 is standard on the KDJ11-E.
External links
- KDJ11-E CPU Module User Guide (EK-KDJ1E-UG-001)
| 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 |
