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ZZ80MB Rev0, A Z280-based Motherboard with RC2014 Expansion (Obsolete)
Introduction
Please note, this is rev0 of ZZ80MB, it is superceded by ZZ80MB rev3.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.
Features
Z280 CPU configured to Z80-compatible mode running at 24MHz with selectable bus speed of 12 MHzor 6 MHz
1/2 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
3 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
Software
ZZ80Mon, a simple monitor for ZZ80MB
CP/M2.2 BIOS/BDOS/CCP