Emerson / Heurikon HK68 / V4F Microcomputer VME Module

The Emerson/Heurikon HK68/V4F is a 32-bit VMEbus microcomputer module built around the Motorola MC68040 processor for real-time embedded and industrial applications. This single-board computer delivers 13.5 VAX MIPS and 3.6 MFLOPS performance in demanding multiprocessing environments requiring simulation, image processing, data acquisition, and industrial control.

Technical Specifications Processor

Motorola MC68040 CISC CPU running at 33 MHz

4 KB instruction cache, 4 KB data cache

Paged MMU with dual 64-entry, 4-way, set-associative TLBs

IEEE-P754 binary floating-point implementation Memory

8 or 16 Mbytes DRAM with parity

2-bank interleaved architecture with write posting buffers

70 ns page mode DRAM VMEbus Interface

32-bit data path, 32-bit addressing, 7 bus interrupts

D32A32(7) Compliance Level with master/slave operation

System controller functions with 4-level arbitration

VIC068 VME Interface Chip implementation

Block transfer rates: 9 Mbytes/sec read, 7 Mbytes/sec write (MOVEM transfers)

VME64 interface optimized for multiprocessing VSB (VME Subsystem Bus)

32-bit multiplexed address/data bus

Master/Slave mode with arbiter capability

Block read: 9.45 Mbytes/sec; block write: 9.65 Mbytes/sec

Mailbox interrupts, CPU interrupt, reset, and VMEbus lock support Corebus (Mezzanine Interface)

32-bit address and 32-bit data paths

Synchronous multimaster module bus operating at CPU clock (33 MHz)

106 Mbytes/sec 4-word burst transfer capability

Asynchronous Module Peripheral Bus for low-speed I/O Peripheral I/O

Two front-panel serial interface ports

SCSI and Ethernet support via Corebus expansion modules

Key Features Multilayer construction with ground and VCC planes ensures signal integrity. Reset switch on front panel provides local control. The architecture supports both private data transfer (VSB) and custom expansion (Corebus) for tailored system designs.

Typical Applications Simulation, image processing, printing, data acquisition, industrial control.

Compatibility & Integration VxWorks and OS-9 real-time operating systems with development environments provide software support for rapid application development.