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====== Zuno, CP/M-ready Z80 SBC for Arduino Mega Enclosure ======

===== Introduction =====

Zuno is based on Z80SBC64, but redesigned so to fit in an acrylic Arduino Mega enclosure.

[[https://www.retrobrewcomputers.org/lib/exe/fetch.php?tok=277552&media=https://www.retrobrewcomputers.org/lib/plugins/ckgedit/fckeditor/userfiles/image/builderpages/plasmo/zuno/dsc_47060902.jpg|{{https://www.retrobrewcomputers.org/lib/plugins/ckgedit/fckeditor/userfiles/image/builderpages/plasmo/zuno/dsc_47060902.jpg?600x324|www.retrobrewcomputers.org_lib_plugins_ckgedit_fckeditor_userfiles_image_builderpages_plasmo_zuno_dsc_47060902.jpg}}]]

===== Features =====

Z80 overclocked to 22MHz

ROMless

Battery-backed 128K RAM

Altera EPM7064S in PLCC44 package

4 banks, each bank is 32KB

Simple serial port with serial bootstrap capability

Serial port operates at 115200 N81, no handshakes

I2C bus

Real-time-clock with PCF8563

Disk-on-module mass storage

CP/M 2.2 and CP/M 3

RC2014 I/O bus interface

[[https://www.retrobrewcomputers.org/lib/exe/fetch.php?tok=22507f&media=https://www.retrobrewcomputers.org/lib/plugins/ckgedit/fckeditor/userfiles/image/builderpages/plasmo/zuno/zuno_r03_annotated_copy.jpg|{{https://www.retrobrewcomputers.org/lib/plugins/ckgedit/fckeditor/userfiles/image/builderpages/plasmo/zuno/zuno_r03_annotated_copy.jpg?600x357|www.retrobrewcomputers.org_lib_plugins_ckgedit_fckeditor_userfiles_image_builderpages_plasmo_zuno_zuno_r03_annotated_copy.jpg}}]]

===== Functions =====

Refer to the [[builderpages:plasmo:z80sbc64|Z80SBC64 function]] section for a description of the Zuno functionalities

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

[[https://retrobrewcomputers.org/lib/exe/fetch.php?media=builderpages:plasmo:zuno:zuno_03_scm.pdf|Schematic]]

Gerber [[https://retrobrewcomputers.org/lib/exe/fetch.php?media=builderpages:plasmo:zuno:zuno_r03.zip|photoplots]]

[[https://retrobrewcomputers.org/lib/exe/fetch.php?media=builderpages:plasmo:zuno:zuno_i2c.zip|CPLD equations]]

==== Software ====

Zuno software is compatible with [[builderpages:plasmo:z80sbc64|Z80SBC64]].

==== Engineering Change for Rev 0.3 board ====

[[builderpages:plasmo:zuno:zuno_03_ec1|Modify I2C bus connector]] pin assignment, this is only applicable to rev 0.3 pc board

===== Manuals =====

[[builderpages:plasmo:zuno:zuno_getting_started|Getting Started]] with Zuno

Zuno monitor manual is same as [[builderpages:plasmo:z80mb64:zmon64_manual|Z64Mon]], the monitor for Z80SBC64 and Z80MB64

Loading software into a new DOM

===== Zuno Projects =====

Zuno has two expansion ports, I2C and RC2014. External hardware can connect to these ports for additional capabilities.

Interface to [[builderpages:plasmo:zuno:zuno_proj:oled128x64|128×64 OLED]] display

Interface to [[builderpages:plasmo:zuno:zuno_proj:ws2812b|WS2812B]] pixel addressable RGB LED

Interface to RC2014 I/O modules

[[builderpages:plasmo:zuno:zuno_proj:bridge_rc2014|Bridge to RC2014]] backplane