Difference between revisions of "KB11-B CPU"
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Revision as of 01:12, 13 May 2018
The KB11-B CPU is the earlier CPU for the PDP-11/70. The optional FP11-B Floating-Point Processor (full FP11 floating point), and up to four RH70 MASSBUS controller plugged into the CPU's backplane.
The KB11-B used a special memory bus, unique to the -11/70, for its bus to main memory; this bus allowed it to have up to 4 mega-bytes of main memory. All devices were attached to a separate UNIBUS; DMA devices could gain access to the memory via a UNIBUS map which connected the two, and also mapped UNIBUS addresses to main memory addresses. High-speed devices could be attached to MASSBUS controllers.
Full PDP-11 Memory Management and a cache were standard on all KB11-B's.
Boards
The basic KB11-B consisted of fifteen hex boards:
- M8130 Data Paths
- M8131 General Registers and ALU Control
- M8132 Instruction Register Decode and Condition Codes
- M8133 ROM and ROM Control
- M8134 Processor Data and UNIBUS Registers
- M8135 Trap and Miscellaneous Control
- M8136 UNIBUS and Console Control
- M8137 System Address Paths
- M8138 System Status Registers
- M8140 System Descriptor/Console Control
- M8141 UNIBUS Map
- M8142 Cache Control
- M8143 Address Memory
- M8144 Data Memory
- M8145 Cache Data Paths
and a quad board:
- M8139 Timing Generator
The M8130 through M8139 boards are based on those of the KB11-A CPU of the PDP-11/45, upon which the KB11-B is based; the rest implement the -11/70's extensions (cache - M8142-45, UNIBUS Map - M8141, etc).
See also
v • d • e PDP-11 Computers and Peripherals |
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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 |