Retro PCBs Wiki

This page is read only. You can view the source, but not change it. Ask your administrator if you think this is wrong.
/* Imported from Wayback Machine
   Original URL : https://www.retrobrewcomputers.org/doku.php?id=builderpages%3Aplasmo%3Aapple2%3Aa2cpld%3Aa2cpldhome
   Snapshot date: 2026-02-17
   Generator    : wayback-archiver
*/

==== Table of Contents ====

[[#a2cpld_an_apple_ii_cpld_board_for_hosting_coprocessor|A2CPLD, An Apple II CPLD Board for Hosting Coprocessor]]

[[#introduction|Introduction]]

[[#design_information|Design Information]]

[[#w65c816_project|W65C816 Project]]

====== A2CPLD, An Apple II CPLD Board for Hosting Coprocessor ======

===== Introduction =====

A2CPLD is a prototyping platform to develop coprocessor for Apple II. The 40-pin DIP is wired for Z80. However, nested in the 40-pin DIP is a 48-pin DIP that is not wired, but can accommodate other 40/48-pin retro processor and reroute Z80's address/data/control signals to the uncommitted DIP socket.

[[https://www.retrobrewcomputers.org/lib/exe/fetch.php?tok=2fe85d&media=https://www.retrobrewcomputers.org/lib/plugins/ckgedit/fckeditor/userfiles/image/builderpages/plasmo/apple2/a2cpld/dsc_68850315.jpg|{{https://www.retrobrewcomputers.org/lib/exe/fetch.php?w=600&h=339&tok=f9e79d&media=https%3A%2F%2Fwww.retrobrewcomputers.org%2Flib%2Fplugins%2Fckgedit%2Ffckeditor%2Fuserfiles%2Fimage%2Fbuilderpages%2Fplasmo%2Fapple2%2Fa2cpld%2Fdsc_68850315.jpg?600x339|www.retrobrewcomputers.org_lib_plugins_ckgedit_fckeditor_userfiles_image_builderpages_plasmo_apple2_a2cpld_dsc_68850315.jpg}}]]

===== Design Information =====

[[https://www.retrobrewcomputers.org/lib/exe/fetch.php?media=builderpages:plasmo:apple2:a2cpld:a2cpld_rev0_scm.pdf|Schematic]]

CPLD design file

===== W65C816 Project =====

[[https://www.retrobrewcomputers.org/lib/exe/fetch.php?tok=017c1c&media=https://www.retrobrewcomputers.org/lib/plugins/ckgedit/fckeditor/userfiles/image/builderpages/plasmo/apple2/a2cpld/dsc_68520221.jpg|{{https://www.retrobrewcomputers.org/lib/exe/fetch.php?w=400&h=336&tok=909c13&media=https%3A%2F%2Fwww.retrobrewcomputers.org%2Flib%2Fplugins%2Fckgedit%2Ffckeditor%2Fuserfiles%2Fimage%2Fbuilderpages%2Fplasmo%2Fapple2%2Fa2cpld%2Fdsc_68520221.jpg?400x336|www.retrobrewcomputers.org_lib_plugins_ckgedit_fckeditor_userfiles_image_builderpages_plasmo_apple2_a2cpld_dsc_68520221.jpg}}]]

[[https://www.retrobrewcomputers.org/lib/exe/fetch.php?tok=d036c5&media=https://www.retrobrewcomputers.org/lib/plugins/ckgedit/fckeditor/userfiles/image/builderpages/plasmo/apple2/a2cpld/dsc_68530221.jpg|{{https://www.retrobrewcomputers.org/lib/exe/fetch.php?w=400&h=330&tok=702681&media=https%3A%2F%2Fwww.retrobrewcomputers.org%2Flib%2Fplugins%2Fckgedit%2Ffckeditor%2Fuserfiles%2Fimage%2Fbuilderpages%2Fplasmo%2Fapple2%2Fa2cpld%2Fdsc_68530221.jpg?400x330|www.retrobrewcomputers.org_lib_plugins_ckgedit_fckeditor_userfiles_image_builderpages_plasmo_apple2_a2cpld_dsc_68530221.jpg}}]]