Emerson / Motorola MVME2604 VME64 Processor Module, 333 MHz, 128 MB RAM

The Emerson/Motorola MVME2604 is a VME64 single-slot processor module built around the PowerPC 604e core operating at 333 MHz. It delivers 128 MB of on-board ECC DRAM with expansion capability up to 512 MB, 8 MB of on-board Flash, and 8 KB of battery-backed NVRAM. The module integrates a full 32-bit VMEbus master/slave interface, 10/100Base-T Ethernet with DMA, Fast SCSI-2 (8- or 16-bit), IEEE 1284 parallel port, and one PMC expansion slot via a 64-bit PCI host bridge.

Serial connectivity includes 2–3 asynchronous ports plus 1–2 synchronous/asynchronous ports. Four 32-bit timers and a watchdog timer provide real-time control. The board measures 233.4 mm height × 160.0 mm depth × 19.8 mm width, with front panel height of 261.8 mm.

Technical Specifications

• Processor: PowerPC 604e core, 333 MHz clock, 32 KB/32 KB L1 cache, 256 KB L2 cache


• Memory: 128 MB ECC DRAM on-board; up to 512 MB via RAM200 expansion; 8 MB on-board Flash; 1 MB socketed Flash; 8 KB × 8 NVRAM with battery backup


• VMEbus: VME64 compliance, 5-row 160-pin connectors (P1, P2), D64 and local bus memory burst cycle support


• Ethernet: 10/100Base-T transceiver with 32-bit PCI local bus DMA


• SCSI: 8- or 16-bit Fast SCSI-2 bus interface


• Serial Ports: 2–3 asynchronous; 1–2 synchronous/asynchronous


• Parallel Port: IEEE 1284 compatible


• PMC Slot: IEEE P1386.1 32/64-bit PCI Mezzanine Card support


• Timers: Four 32-bit timers; one watchdog timer


• Real-Time Clock: On-board time-of-day clock with replaceable battery


• Debug: JTAG debug port (14-pin header); on-board debug monitor with self-test


• Chipset: Falcon (Flash/DRAM control); Raven ASIC (PCI bridge, MPIC)


• Indicators: Status LEDs, reset switch

Key Features

• Single-slot VME form factor fits standard 19-inch VMEbus backplanes


• ECC DRAM protection for real-time applications


• PCI Raven bridge supports embedded Ethernet, SCSI, and one mezzanine card


• Floppy drive and keyboard/mouse interface support for legacy peripheral integration


• Battery-backed NVRAM and real-time clock for persistent timekeeping

Typical Applications Industrial control systems, real-time data acquisition, embedded VMEbus compute nodes, telecommunications equipment, aerospace and defense platforms.

Compatibility & Integration Full VME64 bus compliance enables operation in heterogeneous VMEbus architectures. The 64-bit PCI bridge and PMC expansion slot allow integration of custom or commercial I/O mezzanine cards. Falcon and Raven chipsets provide transparent boot Flash management and PCI host bridging.