MVME166-11A Emerson Single Board Computer

The Emerson / Motorola MVME166 Series Single Board Computers are based on the MC68040 microprocessor. The MVME166 has 4/8/16/32/64/128/256 MB of ECC-protected DRAM, 1 MB of Flash memory with download EPROM, 128KB of static RAM (with battery backup), 8KB of static RAM and time of day clock (with battery backup), Ethernet transceiver interface, four serial ports with TTL interface, four tick timers, watchdog timer, SCSI bus interface with DMA, Centronics printer port, A16/A24/A32/D8/D16/D32/D64 VMEbus master/slave interface, VMEbus system controller, and a VSB interface.

The I/O connection for the MVME166 is provided by two high density shielded front panel I/O connectors. The SCSI bus is connected through a 68 pin connector. The printer, four serial ports and Ethernet interface are connected through a 100 pin connector. The MVME712-10 transition module and the MVME712-06/07/09 I/O distribution board set were designed to support the MVME166 boards. These transition boards provide configuration headers, serial port drivers and industry standard connectors for the I/O devices.

The VMEbus interface is provided by an ASIC called the VMEchip2. The VMEchip2 includes two tick timers, a watchdog timer, programmable map decoders for the master and slave interfaces, and a VMEbus to/from local bus DMA controller, a VMEbus to/from local bus non-DMA programmed access interface, a VMEbus interrupter, a VMEbus system controller, a VMEbus interrupt handler, and a VMEbus requester.

Processor-to-VMEbus transfers can be D8, D16, or D32. VMEchip2 DMA transfers to the VMEbus, however, can be D16, D32, D16/BLT, D32/BLT, or D64/MBLT.

The VSBchip2 provides the VSB interface on the MVME166. The VSBchip2 includes programmable map decoders for the master and slave interfaces, a VSB master interface, a VSB slave interface, a VSB interrupter, a VSB interrupt handler, a VSB serial requester, a VSB serial arbiter, and a VSB parallel requester. The VSB is connected to the P2 connector rows A and C on the MVME166.

The PCCchip2 ASIC provides two tick timers and the interface to the LAN chip, SCSI chip, serial port chip, printer port, BBRAM, and download EPROM for Flash memory.

The MCECC memory controller ASIC provides the programmable interface for the ECC-protected DRAM mezzanine board.