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Densan DVE-P7447-50A
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Densan DVE-OP60C-20A (9274)
Densan DVE-OP60C-20A (9274)
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Densan DVE-P7447-50B
Densan DVE-P7447-50B

Densan DVE-P7447-50A

Product Name​
Densan DVE-P7447-50A VME PowerPC Processor Board
Product Overview​
Densan DVE-P7447/50 series is a 6U VMEbus processor board built around the Freescale MPC7447A Power Architecture processor. The 50A variant follows the same DVE-P7447/50 hardware platform unless the procurement label defines a different firmware, BOM, or configuration. Confirm the exact 50A configuration from the board nameplate.
Category:
Description
Technical Specifications​
Processor: Freescale MPC7447A with 32 KB L1 cache, 512 KB L2 cache, and integrated MMU. Memory: 512 MB DDR2 SDRAM through SO-DIMM. Boot storage: 512 KB PLCC flash, 3.3 V, 32-pin for IPL. Application storage: 64 MB flash. Nonvolatile data: 32 KB NVRAM for real-time clock and parameter retention.
Communication Interfaces​
Two Gigabit Ethernet ports. Four RS-232C serial interfaces. One IDE interface implemented with Compact Flash. Two USB 2.0 host ports.
Functional Features​
The board provides central computing resources for VME systems, automatic slot identification, and central-resource function that switches automatically according to system configuration. The VME-PCI bridge uses Universe II for high-speed bus interconnection.
Application Scenarios​
Deploy in 6U VME industrial computers, defense and transportation systems, semiconductor equipment controllers, and long-life automation platforms requiring PowerPC processing with standard VME I/O.
Performance Parameters​
The MPC7447A executes Power Architecture code with on-chip L1 and L2 caching for deterministic computing performance. DDR2 memory supports operating-system operation, data buffering, and application execution. Gigabit Ethernet provides high-throughput networking; VMEbridge supports legacy peripheral integration.
Material Composition​
The board uses a multilayer FR-4 6U VME substrate, heatsink for the processor module, SO-DIMM memory module, PLCC and surface-mount flash devices, VME edge connector, and industrial-grade passive components.
Structural Characteristics​
The 6U form factor includes VMEbus edge connector, processor module with cooling hardware, memory and storage sockets, serial and Ethernet connectors on the front or rear transition interface, and bridge logic for VME-PCI translation.
Working Principle​
The MPC7447A executes boot code from PLCC flash, initializes DDR2 memory and NVRAM, then loads the application image from onboard flash or Compact Flash. System I/O is managed through Ethernet, serial, USB, IDE, and the Universe II VME-PCI bridge for communication with VME peripherals.
Installation Requirements​
Insert the board into a standard 6U VME chassis slot. Verify +5 V and auxiliary backplane supplies before power-on. Configure boot flash and slot ID according to the system manual. Connect Ethernet, serial, and storage devices using approved cables.
Usage Precautions​
Confirm firmware compatibility before replacing an existing P7447 board. Avoid processor overheating by keeping the heatsink and airflow path unobstructed. Handle SO-DIMM and flash devices with anti-static procedures. Back up NVRAM parameters before maintenance.
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