MPC850DEVR50BU

The MPC850DEVR50BU is a Freescale/NXP development board used to evaluate and develop applications on the MPC850 PowerPC-based microcontroller (PowerQUICC II family). “DEVR” denotes a development board; “50” indicates a 50 MHz clock; “BU” is the package/variant code.
Key points:
- On-board MPC850 CPU (PowerPC 32-bit) with integrated peripherals typical of PowerQUICC II.
- On-board memory (RAM/flash boot ROM) and boot options for development.
- On-board interfaces such as Ethernet (PHY/MAC), serial ports (RS-232), and other common baud-rate peripherals; JTAG for programming and debugging.
- Expansion/connectors for peripherals and power; standard development tool support.
- Used for BSP development, firmware/software porting, performance testing, and learning the MPC850 architecture.
- Supported with vendor-provided documentation, example code, and toolchains (e.g., IDEs/compilers commonly used for PowerPC MCUs).
Note: exact I/O count and peripherals vary by revision; check the specific user guide for your board.

Key features of the MPC850DEVR50BU (typical; please consult the exact revision manual for precise specs):
- Development board based on Freescale MPC850 PowerPC 32-bit core (PowerQUICC II) with integrated memory controller.
- On-board memory for code and data (RAM) and flash storage with boot ROM options.
- Networking: onboard Ethernet interfaces (10/100 Mbps) with RJ-45 connectors.
- Expansion: PCI/PCI-X style I/O expansion interface for additional peripherals.
- USB: USB host and/or device support.
- Real-time I/O: CAN bus interface for automotive/embedded applications.
- Serial I/O: multiple RS-232 serial ports and a console/debug port.
- On-board peripherals: I2C and SPI busses, GPIO availability for user I/O.
- Debug/Development: JTAG boundary-scan and on-chip debug support.
- Power and environmental: 5V DC supply with on-board regulators; suitable for embedded temperature ranges.
- Software support: BSPs and toolchains available for CodeWarrior, Wind River/VxWorks, and Linux.
Note: exact peripherals, memory sizes, and speeds vary by revision; verify with the official hardware manual for your unit.

MPC850DEVR50BU is a development EVR kit, not a standalone MCU package. The DEVR suffix denotes an Evaluation Board, so there’s no fixed package type in the part number—check the EVR user guide for the exact MCU package used on the board.

- Pin count: 208 pins (LQFP208 package)
- Function: MPC850DEVR50BU is an evaluation/development board for the MPC850 PowerPC microcontroller (50 MHz). It provides a platform with on-board power, clock, memory, and standard I/O interfaces to prototype and test the MPC850’s peripherals and features.

Manufacturer: Freescale Semiconductor (originally Motorola’s Semiconductor Products Sector; now part of NXP Semiconductors).
What kind of company: A multinational semiconductor company specializing in embedded processors, microcontrollers, and related hardware.

Common application areas for the MPC850DEVR50BU development board include:
- Automotive electronics (body controllers, gateways)
- Industrial automation and process control
- Embedded networking/telecom equipment (routers, switches, line cards)
- General embedded prototyping and test benches