Technical literature

Articles

Title	Date	Author
Down to the silicon: How the Z80's Registers Are Implemented	2014-10	Shirriff, Ken
Interrupt Behaviour of the Z80 CPU		Flammenkamp, Achim
Reverse-Engineering the Z-80: The Silicon for Two Interesting Gates Explained	2013-09	Shirriff, Ken
The Z-80 Has a 4-Bit ALU. Here's How It Works	2013-09	Shirriff, Ken
The Z-80's 16-Bit Increment/Decrement Circuit Reverse Engineered	2013-11	Shirriff, Ken
Why the Z-80's Data Pins Are Scrambled	2014-09	Shirriff, Ken
Z80 Special Reset	2014-12	Brewer, Tony

Documents

Title	Edition	Date	Author(s)	Download
1981 Data Book		1981	Zilog	pdf
1981 Z80 Microcomputer Data Book		1981-03	Mostek	pdf
1982/83 Data Book		1982	Zilog	pdf[1], pdf[2]
1982/83 Z80 Designers Guide		1982-06	Mostek	pdf
1983/84 Data Book		1983	Zilog	pdf
1985 Data Book		1985	Zilog	pdf
1986 Semiconductor Data Book (MOS Edition)		1986-03	Sharp	pdf
1990 8-Bit Microprocessor: TLCS-Z80, 85		1990-06	Toshiba	pdf
1990-91 Microcomputers Data Book		1990-10	Sharp	pdf
Decoding Z80 Opcodes		2004-08	Dinu, Cristian	htm
Decoding Z80 Opcodes	rev. 1	2004-09	Dinu, Cristian	htm
Decoding Z80 Opcodes	rev. 2	2005-01	Dinu, Cristian	htm
Decoding Z80 Opcodes	rev. 2 (revised)	2006-08	Dinu, Cristian	htm
Decoding Z80 Opcodes	rev. 2 (revised)	2018-03	Dinu, Cristian	htm
Full Z80 Opcode List Including Undocumented Opcodes	v0.10	1997-09-09	Harston, Jonathan Graham	txt
Full Z80 Opcode List Including Undocumented Opcodes	v0.11	1998-04-15	Harston, Jonathan Graham	txt
Full Z80 Opcode List Including Undocumented Opcodes	v0.11 (revised)	2008-0x	Harston, Jonathan Graham	txt
MEMPTR, Esoteric Register of the Zilog Z80 CPU	(en)	2006-03-29	boo_boo; Kladov, Vladimir	txt
MEMPTR, Эзотерический Регистр Zilog Z80	(ru)	2006-03-29	boo_boo; Kladov, Vladimir	txt
Microprocessors - Volume 1: 8bit MPUs & MCUs		1987-01	Toshiba	pdf
Microprocessor Applications Reference Book: Volume 1		1981-07	Zilog	pdf
Microprocessor Applications Reference Book: Volume 2		1983-08	Zilog	pdf
MK3880 Central Processig Unit		1979	Mostek	pdf
Product Evaluation of the Zilog Z80-CTC		1979-06-12	ICE	pdf
Superintegration Shortform Catalog 1992		1992	Zilog	pdf
Undocumented Z80 Documented, The	v0.4	2001-09	Young, Sean	pdf, tex
Undocumented Z80 Documented, The	v0.6	2003-11-20	Young, Sean	pdf, tex
Undocumented Z80 Documented, The	v0.9	2005-06-14	Young, Sean	pdf, tex
Undocumented Z80 Documented, The	v0.91	2005-09-18	Young, Sean	pdf
Undocumented Z80 Flags	rev. 1.0	2018-08-21	Banks, David	pdf
Volume I Databook: Microprocessors and Peripherals		1992	Zilog	pdf
Z-80 CTC Counter/Timer Circuit: Product Specification		1980-02	Zilog	pdf
Z-80 DMA Direct Memory Access Controller: Product Specification		1980-02	Zilog	pdf
Z-80 SIO Serial Input/Output Controller: Product Specification		1980-02	Zilog	pdf
Z80 CPU Central Processing Unit Technical Manual		1987-08	Zilog	pdf
Z80 CPU Microprocessor Instant Reference Card		1981	Micro Logic	pdf
Z80 CPU Peripherals User Manual		2001-08	Zilog	pdf
Z80 CPU User Manual		2001	Zilog	pdf
Z80 CPU User Manual		2002-12-10	Zilog	pdf
Z80 CPU User Manual	rev. 04	2005-0x	Zilog	pdf
Z80 CPU User Manual	rev. 05	2005-03	Zilog	pdf
Z80 CPU User Manual	rev. 06	2014-07	Zilog	pdf
Z80 CPU User Manual	rev. 08	2016-01	Zilog	pdf
Z80 CPU User Manual	rev. 11	2016-09	Zilog	pdf
Z80 Family Data Book		1989-01	Zilog	pdf
Z80 Family Product Specifications Handbook		1984-02	Zilog	pdf
Z80 Family Program Interrupt Structure, The		1978-05	Zilog	pdf, pdf[rewritten]
Z80 Family User's Manual		1994	Zilog	pdf
Z80 Interupt Mode 2		2008-0x	Harston, Jonathan Graham	txt
Z80 Interupt Mode 2		2010	Harston, Jonathan Graham	txt
Z80 Microcomputer System Micro-Reference Manual		1978-02	Mostek	pdf
Z80 Microprocessor Family	1st edition	1990-01	SGS-Thomson	pdf[1], pdf[2]
Z80 Microprocessor Undocumented Instructions	v0.12	1997-10-15	Harston, Jonathan Graham	txt
Z80 Microprocessor Undocumented Instructions	v0.13	1997-12-18	Harston, Jonathan Graham	txt
Z80 Microprocessor Undocumented Instructions	v0.15	2012-0x	Harston, Jonathan Graham	txt
Z80 Opcode Map	v0.10	1997-09-09	Harston, Jonathan Graham	txt
Z80 Opcode Map	v0.10 (revised)	2005	Harston, Jonathan Graham	txt
Z80 Opcode Map	v0.10 (revised)	2008-0x	Harston, Jonathan Graham	txt
Z80 Opcode Map	v0.10 (revised)	2011-0x	Harston, Jonathan Graham	txt
Z80 Opcode Map	v0.10 (revised)	2014	Harston, Jonathan Graham	txt
Z80 Programming Manual	v2.0	1978-10	Mostek	pdf
Z80 Undocumented Features (In Software Behaviour)	v0.3	1998-10	Young, Sean	txt
Z80-Assembly Language Programming Manual		1978-01	Zilog	pdf
Z80-Assembly Language Programming Manual		1980-04	Zilog	pdf
Z80-CPU Technical Manual		1976	Zilog	pdf, pdf[B&W]
Z80-CPU Z80A-CPU Product Specification		1978-03	Zilog	pdf
Z80-CPU Z80A-CPU Technical Manual		1977	Zilog	pdf
Zilog Data Book		197x	Zilog	pdf
Zilog Z80 CPU Specifications		1997-09-21	Young, Sean	doc
Zilog Z80 Instructions Sorted by Opcode	v0.2	1998-09	Young, Sean	txt

Patents

No.	Topics	Filed	Granted	Owner	Download
US4332008	Memory refresh and architecture.	1979-11-09	1982-05-25	Zilog	pdf
US4486827	Special reset.	1982-01-18	1984-12-04	Zilog	pdf
US6502181B1	Zilog eZ80 CPU.	1999-09-17	2002-12-31	Zilog	pdf

Important forum threads

Forum	Thread
Spectrum Computing	Z80 Block Flags Test for the "recently" discovered behavior of the block instructions of the Z80 CPU
	New discovery on Z80 interrupts
	New discovery on Z80 I/O block instructions
StarDot	Z80 Protocol Decoder
	New discovery on Z80 interrupts
World of Spectrum	MEMPTR tests for emulator authors
	SCF/CCF flags - new discovery
	New Z80 CPU emulation tester
	RAND USR that doesn't work in emulators and clones
ZX-PK.ru: Speccy наш выбор	команда BIT n,(HL)
	Просьба реальщикам от эмуляторщиков
ZXPRESS	команда BIT n,(HL)