World Library  
Flag as Inappropriate
Email this Article

Amiga Zorro II

Article Id: WHEBN0003684497
Reproduction Date:

Title: Amiga Zorro II  
Author: World Heritage Encyclopedia
Language: English
Subject: ReTargetable Graphics, Amiga 500, Amiga, Clock port, Expansion card
Collection:
Publisher: World Heritage Encyclopedia
Publication
Date:
 

Amiga Zorro II

Zorro II is the name of the general purpose expansion bus used by the Amiga 2000 computer. The bus is mainly a buffered extension of the Motorola 68000 bus, with support for bus mastering DMA. The expansion slots use a 100-pin connector and the card form factor is the same as the IBM PC. Zorro II cards implement the Autoconfig protocol for automatic address space assignment (designed before, yet similar to, Plug and Play on the PC).

The Amiga 1000, A500, and A500+ have a mirror image of a single Zorro slot as their main expansion port – a "male" card edge rather than a "female" card edge socket, with left-handed pin configuration. The prototype expansion box for the A1000 was the basis for the initial Amiga 2000A model design.

Zorro II was succeeded by Zorro III, a 32-bit, asynchronous bus.

Memory map

Address Size [MByte] Description
0x00 0000 2.0 Chip memory
0x20 0000 8.0 Zorro II memory expansion space
0xA0 0000 1.5 Zorro II I/O expansion space
0xB8 0000 3.0 A2000 motherboard register space
0xE8 0000 0.5 Zorro II I/O
0xF0 0000 1.0 Motherboard ROM

External links

  • Amiga Hardware Database - Descriptions and photos of Zorro II cards.


This article was sourced from Creative Commons Attribution-ShareAlike License; additional terms may apply. World Heritage Encyclopedia content is assembled from numerous content providers, Open Access Publishing, and in compliance with The Fair Access to Science and Technology Research Act (FASTR), Wikimedia Foundation, Inc., Public Library of Science, The Encyclopedia of Life, Open Book Publishers (OBP), PubMed, U.S. National Library of Medicine, National Center for Biotechnology Information, U.S. National Library of Medicine, National Institutes of Health (NIH), U.S. Department of Health & Human Services, and USA.gov, which sources content from all federal, state, local, tribal, and territorial government publication portals (.gov, .mil, .edu). Funding for USA.gov and content contributors is made possible from the U.S. Congress, E-Government Act of 2002.
 
Crowd sourced content that is contributed to World Heritage Encyclopedia is peer reviewed and edited by our editorial staff to ensure quality scholarly research articles.
 
By using this site, you agree to the Terms of Use and Privacy Policy. World Heritage Encyclopedia™ is a registered trademark of the World Public Library Association, a non-profit organization.
 


Copyright © World Library Foundation. All rights reserved. eBooks from Project Gutenberg are sponsored by the World Library Foundation,
a 501c(4) Member's Support Non-Profit Organization, and is NOT affiliated with any governmental agency or department.