The eZ80 Single-Board Computer

Read the Installation Guide.

Try it now: You can connect to an eZ80SBC and try it out for yourself.

eZ80 Single-Board Computer      FACT SHEET

Processor: 

• eZ80F91 Microprocessor or the new eZ80F91A.
• 256K of Internal FLASH memory
• 16K of Internal SRAM / 128K on-module.
• 50MHz clock speed, generated by on-chip PLL.  5MHz crystal frequency, for software-controllable clock speed from 5-50MHz.
• Ethernet Media Access Controller (MAC)
• Shared access to SD card slots, USB Device Controller, and USB Host Controller.
• Two high-speed RS-232 Serial Ports.

 I/O

• Two SD-Memory card slots:
  • Each slot has full card detect/write protect functionality.
  • SDIO-compliant in SDIO-SPI mode, including dedicated interrupt input for each slot.
• USB 2.0 Full-speed (12mbps) device port for PC connectivity.
  • Internal 8051 Microcontroller with 64K of internal FLASH memory, and 4K of internal RAM.
  • 16 available General Purpose I/O port with selectable digital I/O or analog inputs.
  • Integrated Temperature Sensor.
  • Shared access to SD card slots, eZ80 Microprocessor, and USB Host Controller.
• Two additional RS-232 Serial Ports
• USB 1.1 Host Controller for connecting USB peripherals to the system.

 Debugging

• Source-level debugging of the eZ80F91 Microprocessor via Zilog Smart Cables (Serial, Ethernet, or USB.)  Zilog ZDS-II IDE version 10.1. (ZDI Interface)
• Source-level debugging of the 8051-based USB Device Controller using the Silicon Laboratories IDE, and Silicon Laboratories USB Debug Adapter. (C2 Interface)

 Software

• Can run CP/M 2.2 and CP/M 3.0.  CBIOS Support included for eZ80F91 serial ports, SD Memory cards, and internal FLASH disk using a portion of the eZ80F91’s internal FLASH.
• CP/M Boots directly from the eZ80F91’s internal FLASH.
• CCP stored in FLASH for rapid warm-starts.
• Software support for other peripherals currently in development.
• See a sample CP/M run here.

 Media

• SD Memory cards, 64MB to 2GB tested.
• Images on SD Memory Cards are compatible with the SIMH/AltairZ80 simulator, for easy transfer of files from SIMH to the eZ80 SBC and vice-versa.

Estimated price:

• $200 - Base system (supply your own eZ80 Mini or Full-size Ethernet Module)

• $250 - Complete end-User (with eZ80 Mini Ethernet Module)

• $350 - Development Kit (Includes USB download cables for eZ80 and 8051)

Availablilty:

• Demonstrated at VCF 9.0 on November 4th/5th 2006.

• 10 Prototype boards fabbed.

• 4 of these have been assembled. (by hand)

• 2 of these have been sold to developers who want to assemble themselves. (not for the novice!)

• 4 remain to be assembled, and will be offered to Developers.

For more information, please fill out the eZ80 SBC Information Request Form.