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Densan DVE-P7447-50A
Densan DVE-P7447-50A
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Densan DVE-R3900-20A (9328)
Densan DVE-R3900-20A (9328)

Densan DVE-P7447-50B

Product Name​
Densan DVE-P7447-50B VME PowerPC Processor Board
Product Overview​
Densan DVE-P7447-50B is a variant of the DVE-P7447/50 6U VME PowerPC platform based on the Freescale MPC7447A processor. The 50B suffix denotes a procurement, firmware, or configuration variant of the 50A hardware family. Verify the exact 50B difference from the board label, BOM, and Densan release note.
Category:
Description
Technical Specifications​
Processor: Freescale MPC7447A with 32 KB L1 cache, 512 KB L2 cache, MMU. Memory: 512 MB DDR2 SDRAM SO-DIMM. Boot flash: 512 KB PLCC, 3.3 V, 32-pin. Application flash: 64 MB. NVRAM: 32 KB for RTC and configuration data.
Communication Interfaces​
Two Gigabit Ethernet ports. Four RS-232C serial ports. One IDE/Compact Flash interface. Two USB 2.0 host ports. VME interface through Universe II PCI-VME bridge.
Functional Features​
Automatic ID and central-resource support allow the board to operate in system controller or peripheral slots according to VME system design. The variant 50B should be validated for boot image, driver set, and I/O assignment before exchange.
Application Scenarios​
Use in 6U VME controllers, industrial computing nodes, semiconductor tool control systems, and legacy PowerPC upgrade programs where Densan specifies model DVE-P7447-50B.
Performance Parameters​
Processing performance, memory bandwidth, and I/O throughput follow the MPC7447A and DDR2 platform design. Exact benchmark results depend on operating-system load, cache utilization, and VME traffic.
Material Composition​
Multilayer FR-4 VME board, processor heatsink assembly, DDR2 SO-DIMM, PLCC and SMT flash devices, VME edge connector, serial and network components, and industrial passive elements.
Structural Characteristics​
6U VME mechanical format with processor module, memory/storage sockets, bridge logic, front or rear I/O connectors, and standard VMEbus mating connector.
Working Principle​
The processor boots from PLCC IPL flash, initializes DDR2 and NVRAM, loads the operating image from application flash or Compact Flash, and exchanges data with VME nodes through the Universe II bridge while providing Ethernet, serial, USB, and IDE services.
Installation Requirements​
Install in a compatible 6U VME chassis. Confirm the 50B firmware matches the system software. Check power supply rails, slot position, and VME terminator settings. Connect peripherals only after POST verification.
Usage Precautions​
Do not interchange 50A and 50B boards without confirming firmware and configuration compatibility. Maintain processor cooling. Preserve NVRAM data with a backup before replacement. Use anti-static handling for all memory and flash modules.
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