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--- builderpages:plasmo:zz80mb [2024/12/08 00:12] – Revision from 2024-12-08
+++ builderpages:plasmo:zz80mb [2026/06/15 13:18] (current) – external edit 127.0.0.1
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+/* Imported from Wayback Machine
+   Original URL : https://retrobrewcomputers.org/doku.php?id=builderpages:plasmo:zz80mb
+   Snapshot date: 2023-10-02
+   Generator    : wayback-archiver
+*/
+====== ZZ80MB Rev0, A Z280-based Motherboard with RC2014 Expansion (Obsolete) ======
+===== Introduction =====
+**Please note, this is rev0 of ZZ80MB, it is superceded by [[builderpages:plasmo:zz80mb:zz80mbr3|ZZ80MB rev3]].**
+ZZ80MB is a Z280-based motherboard with RC2014 expansion slots. It is based on the ZZ80RC-CF design, but with additional expansion slots added.
+[[https://www.retrobrewcomputers.org/lib/exe/fetch.php?tok=2dadd4&media=https://www.retrobrewcomputers.org/lib/plugins/ckgedit/fckeditor/userfiles/image/builderpages/plasmo/zz80mb/dsc_50871107.jpg|{{https://www.retrobrewcomputers.org/lib/plugins/ckgedit/fckeditor/userfiles/image/builderpages/plasmo/zz80mb/dsc_50871107.jpg?600x421|www.retrobrewcomputers.org_lib_plugins_ckgedit_fckeditor_userfiles_image_builderpages_plasmo_zz80mb_dsc_50871107.jpg}}]]
+[[https://www.retrobrewcomputers.org/lib/exe/fetch.php?tok=b375b3&media=https://www.retrobrewcomputers.org/lib/plugins/ckgedit/fckeditor/userfiles/image/builderpages/plasmo/zz80mb/dsc_50881107.jpg|{{https://www.retrobrewcomputers.org/lib/plugins/ckgedit/fckeditor/userfiles/image/builderpages/plasmo/zz80mb/dsc_50881107.jpg?600x382|www.retrobrewcomputers.org_lib_plugins_ckgedit_fckeditor_userfiles_image_builderpages_plasmo_zz80mb_dsc_50881107.jpg}}]]
+===== Features =====
+Z280 CPU configured to Z80-compatible mode running at 24MHz with selectable bus speed of 12 MHzor 6 MHz
+/2 megbyte of non-volatile RAM
+RAM-only system, programs are loaded into the non-volatile RAM in UART-bootstrap mode.
+CP/M 2.2 and CP/M 3 ready.
+CF interface supports 4 CF drives
+RC2014 expansion slots
+One internal UART at 115200 baud, odd parity, no handshake
+bootstrap to ZZ80Mon, a simple monitor
+A standalone single-board computer with I/O expansion bus compatible with RC2014 I/O bus
+===== Design Information =====
+[[https://retrobrewcomputers.org/lib/exe/fetch.php?media=builderpages:plasmo:zz80mb:zz80mb_r0_scm.pdf|Schematic]]
+[[https://retrobrewcomputers.org/lib/exe/fetch.php?media=builderpages:plasmo:zz80mb:zz80mb_r0.zip|Gerber photoplots]]
+Bill of Materials
+==== Software ====
+ZZ80Mon, a simple monitor for ZZ80MB
+CP/M2.2 BIOS/BDOS/CCP