1. General Description

• 013A: Industrial temperature grade (0°C ~ +55°C), revised SCSI/Ethernet DMA logic, improved reset/abort noise immunity, DRAM fixed at 4 MB (no expansion).

• 013: Earlier revision, same core I/O (SCSI‑2 + Ethernet), DRAM expandable to 8 MB.

• 013A = SCSI‑2 + Ethernet, no IndustryPack (IP) slots

2. Core Specifications

• Processor: Motorola MC68LC040 @ 25 MHz (no FPU, 8 KB internal cache, MMU)

• DRAM: 4 MB parity‑checked DRAM (factory fixed, non‑expandable on 013A)

• Battery‑Backed SRAM: 512 KB

• Flash Memory: 1 MB Flash (for 162BUG firmware)

• NVRAM/RTC: 8 KB NVRAM + Real‑Time Clock (TOD), battery‑backed

• VMEbus: A32/D32, master/slave, system controller capable

3. Onboard Interfaces

• SCSI‑2: Narrow SCSI‑2 (50‑pin) with DMA (NCR53C710), supports up to 7 devices

• Ethernet: 10 Mbps Ethernet (AUI / 10BASE‑T) with DMA (Intel 82596CA)

• Serial Ports:

  • 1 × Console: EIA‑232‑D (DCE)

  • 1 × Configurable: EIA‑232‑D / EIA‑530 (DCE/DTE)

• Timers: Six tick timers + watchdog timer

• Front Panel:

  • 8 LEDs: FAIL, STAT, RUN, SCON, LAN, FUSE, SCSI, VME

  • 2 pushbuttons: RESET, ABORT

• Not included: IndustryPack (IP) slots

4. Mechanical & Environmental

• Form Factor: 6U VMEbus, single slot

• Operating Temperature: 0°C ~ +55°C (industrial grade)

• Storage Temperature: ‑40°C ~ +85°C

• Humidity: 5%–95% non‑condensing

5. Firmware & Software Support

• Boot Monitor: 162BUG (Motorola proprietary)

• Supported OS: VxWorks, LynxOS, OS‑9, pSOS+, VRTX, OpenBSD/mvme68k, NetBSD/mvme68k

• Functions: POST, memory/VME mapping, serial console, Ethernet/SCSI configuration, watchdog control

6. MVME162 Series Comparison (Key Models)

• MVME162‑010A: IP slots + dual serial, no SCSI/Ethernet

• MVME162‑011A: SCSI‑2 + 512KB SRAM, no Ethernet/IP

• MVME162‑012 / 012A: Ethernet + IP slots, no SCSI

• MVME162‑013: SCSI‑2 + Ethernet, DRAM expandable to 8 MB, no IP

• MVME162‑013A: SCSI‑2 + Ethernet, 4 MB fixed DRAM, industrial rev, improved reliability, no IP

7. Typical Applications

• VMEbus systems requiring both SCSI storage and Ethernet networking

• Industrial automation & DCS with local SCSI peripherals

• Real‑time data logging and acquisition systems

• Legacy MVME162 fleet replacement needing SCSI+Ethernet

8. Maintenance Notes

• Replace onboard backup battery every 3–5 years to preserve SRAM/RTC data

• Configure VMEbus master/slave via onboard jumpers

• Verify SCSI termination and Ethernet link status before power‑on