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====== 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/plugins/ckgedit/fckeditor/userfiles/image/builderpages/plasmo/apple2/a2cpld/dsc_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/plugins/ckgedit/fckeditor/userfiles/image/builderpages/plasmo/apple2/a2cpld/dsc_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/plugins/ckgedit/fckeditor/userfiles/image/builderpages/plasmo/apple2/a2cpld/dsc_68530221.jpg?400x330|www.retrobrewcomputers.org_lib_plugins_ckgedit_fckeditor_userfiles_image_builderpages_plasmo_apple2_a2cpld_dsc_68530221.jpg}}]]