80286 and 80287 Programmer's Reference Manual

The record

Type: Technical manual
Tier: A: Vendor documentation, a government document, a technical manual or an official benchmark result. One tier A source is sufficient to publish a figure.
Locator: Appendix B, "The 80286 Instruction Set", printed page B-5, "Clocks" note
Published: 1987
Consulted: 2026-08-24
Address: https://archive.org/details/intel-1987-80286-and-80287-programmers-reference-manual
License: Copyright Intel Corporation; quoted under short-extract fair use for verification.
Usage: The Internet Archive scan is a digitized copy of an Intel manual. Its clock example establishes the 80286's relation to the CLK input, but it names a 10 MHz processor and does not establish an installed PC memory configuration.