The Motorola MVME167-32B VMEmodule is specified, designed, and tested to operate
reliably with an incoming air temperature range from 0° to 55° C
(32° to 131° F) with forced air cooling at a velocity typically achievable by using a 100
CFM axial fan.
The MVME167-32B is a double-high VMEmodule based on the MC68040 microprocessor.
It features 4/8/16/32/64 MB of parity-protected DRAM or 4/8/16/32/64/128/256 MB of ECC-protected DRAM, 8KB of static RAM with a battery-backed time-of-day (TOD) clock, Ethernet transceiver interface, four serial ports with EIA-232-D interface, four tick timers, watchdog timer, four ROM sockets, SCSI bus interface with DMA, Centronics printer port, A16/A24/A32/D8/D16/D32/D64 VMEbus master/slave interface, 128KB of static RAM (with optional battery backup), and VMEbus system controller.
The I/O of the MVME167-32B is connected to the VMEbus P2 connector. The main board connects to transition boards via a P2 transition board and cables. The MVME167-32B supports transition boards including MVME712-12, MVME712-13, MVME712M, MVME712A, MVME712AM, and MVME712B (referred to as MVME712X in this manual unless specified separately). These MVME712X transition boards provide configuration headers and industry-standard connectors for I/O devices.
2. Features
Core Components & Memory
Microprocessor: MC68040 Microprocessor – 25 MHz for (-00X models), 33 MHz for (-03X models)
DRAM:
4/8/16/32/64MB of 32-bit DRAM with parity protection
Or 4/8/16/32/64/128/256MB of DRAM with ECC protection
ROM Sockets: Four 44-pin PLCC ROM sockets (organized as two banks of 32 bits)
SRAM: 128KB SRAM (with optional battery backup)
NVRAM & TOD Clock: 8K×8 RAM and time-of-day clock with battery backup
Indicators & Controls
Status LEDs: FAIL, STAT, RUN, SCON, LAN, +12V (LAN power), SCSI, and VME
Switches: RESET and ABORT switches
Timers & Interrupts
Four 32-bit tick timers for periodic interrupts
Watchdog timer
Eight software interrupts
I/O Interfaces
SCSI Bus Interface: With DMA functionality
Serial Ports: Four ports with EIA-232-D buffers and DMA support
Printer Port: Centronics printer port
Ethernet Interface: Ethernet transceiver interface with DMA
VMEbus Interface
VMEbus system controller functions
VMEbus to local bus interface: A24/A32, D8/D16/D32 (D8/D16/D32/D64BLT, BLT = Block Transfer)
Local bus to VMEbus interface: A16/A24/A32, D8/D16/D32
VMEbus interrupter
VMEbus interrupt handler
Global CSR (Control and Status Register) for interprocessor communications
DMA for fast local memory-VMEbus transfers: A16/A24/A32, D16/D32 (D16/D32/D64BLT)
3. Temperature Specifications
The Motorola MVME167-32B VMEmodule is specified, designed, and tested to operate reliably under the following thermal conditions:
Incoming Air Temperature Range: 0° to 55° C (32° to 131° F)
Cooling Requirement: Forced air cooling with a velocity typically achievable by a 100 CFM axial fan
Test Conditions
Testing is conducted in a standard Motorola VMEsystem chassis.
Twenty-five watt load boards are inserted in two adjacent card slots (one on each side of the test board) to simulate a high-power-density system configuration.
An assembly of three 100 CFM axial fans is placed directly under the VME card cage.
Incoming air temperature is measured between the fan assembly and the card cage (where the airflow first contacts the test module).
Test software runs continuously while the module is exposed to ambient temperature variations.
Case temperatures of critical, high-power-density integrated circuits are monitored to ensure compliance with component vendors’ specifications.
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