Emerson / Motorola / Force Computers CPU-30ZBE SYS68K Single Board Computer

The Emerson CPU-30ZBE is a VMEbus-based single board computer built around the Motorola MC68030 processor running at 25 MHz, paired with an MC68882 floating point coprocessor. Designed for embedded systems and real-time industrial control, this board combines a full 680x0-family instruction set with substantial onboard memory, integrated serial and SCSI connectivity, and Ethernet capability. It delivers the computational power and I/O versatility required for demanding embedded applications in legacy and contemporary deployments.

Technical Specifications Processor & Memory

Motorola MC68030 at 25 MHz with Memory Management Unit (MMU)

Motorola MC68882 coprocessor at 25 MHz

Dual 256 KByte on-chip instruction and data caches

16 MByte DRAM with byte parity

4 MByte 32-bit system Flash

Optional flash memory: two sockets supporting up to 512 KByte total (standard: 128 KByte)

32 KByte boot memory VMEbus Interface

A32, A24, A16 address spaces; D32, D16, D8 data widths

User Access (UAT) and Read-Modify-Write (RMW) capabilities

7 interrupt levels with single-level arbitration and watchdog timer Serial & Peripheral I/O

Two serial channels via Zilog 85C30 SCC (RS-232 standard; RS-422/RS-485 upgradeable)

Motorola MB87034 SCSI controller with DMA support

WD 37C65C floppy disk controller

20-bit general-purpose I/O via VMEbus P2 connector

AM 79C90 Ethernet (10Base5) with AM 7992B Serial Interface Adapter and LAN buffer RAM Timing & Control

Two 24-bit timers with 500 ns resolution

Real-time clock (battery-backed)

FORCE Gate Array FGA-002 Physical

17.8 cm × 7.6 cm × 33 cm; 0.6 kg

Compatibility & Integration Binary compatible with 68020 user object code. Supports VxWorks, pSOS+, VRTX-32, OS-9, and LynxOS real-time operating systems.