Changes between Version 1 and Version 2 of TBR/BSP/Mbx860_002

Dec 17, 2011, 1:45:59 AM (8 years ago)


  • TBR/BSP/Mbx860_002

    v1 v2  
    1919= Specifications =
    21 MBX821 models include
    22 40 MHz MPC821 processor;
    23 PC104-Plus; 10BaseT Ethernet;
    24 EIDE and Floppy interfaces;
    25 32KB NVRAM;
    26 keyboard, mouse, IR, COM1 and COM2 ports;
    27 LCD panel connector
    2922= Processor =
    31 MBX821 models include 40 MHz MPC821 processor. The MPC821 processor is especially well-suited for applications where
    32 lower power is essential, such as portable andor high-performance
    33 communications systems. The CPU on the MPC821 is a 32-bit PowerPC
    34 implementation incorporating memory management units (MMUs) and
    35 instructiondata caches. It has a real-time clock and a communications
    36 processor module that includes serial communication controllers, serial
    37 management controllers, a serial peripheral interface (SPI) channel, and an
    38 Interprocessor-Integrated Controller (I2C) channel for data exchanges
    39 between the MPC821 and other ICs with I2C capability. The MPC821’s
    40 memory controller supports all available types of memory. Its PCMCIA
    41 controller supports up to two PCMCIA devices (one socket is provided on
    42 the MBX). The MPC821 also incorporates an LCD controller for display
    43 capability.
    4525= DRAM =
    47 The MBX821-002b has 4MB of DRAM, soldered in place. The MBX series embedded controller has provision for either 4MB or
    48 16MB of on-board DRAM, soldered in place. In addition, it
    49 accommodates 8MB to 128MB of expansion DRAM in a 168-pin DIMM
    50 (dual in-line memory module) socket, XU3.
    51 The on-board DRAM is composed of two 16-bit devices (either 1M x 16
    52 or 4M x 16). Parity protection is optional
    5428= Flash Memory =
    56 Flash memory on the MBX821-002b embedded controller consists of 4MB. Flash memory on the MBX series embedded controller consists of 2MB,
    57 4MB, or 8MB of memory in one bank of four devices soldered directly to
    58 the board. The EPPCBug firmware resident in Flash memory is originally
    59 loaded at the factory, but the Flash contents can be reprogrammed if
    60 necessary.
    6231= IO =
    64 Serial IO - EIA-232-D serial console or terminal port (DCEDTE)
    65 Parallel IO - IEEE 1284 parallel port with hostperipheral mode selection
    66 Ethernet IO - Support for AUI and 10BaseT Ethernet interface
    67 PCMCIA interface - One PCMCIA slot (type I, II, or III devices)
    68 LCD interface (MPC821 only) - Support for both active and passive LCD panels via 24-pin header on MPC821-powered MBX boards
    69 Floppy disk controller - Support for direct ribbon cable connection to 2.88MB floppy disk drive via header on MBX board
    70 Keyboardmouse interface - Support for keyboard and mouse input via header on MBX board
    7234= NVRAM =
    74 The MBX821-001 embedded controller accommodates 32KB of non- volatile RAM (NVRAM). The MBX series embedded controller accommodates 32KB of Non-Volatile RAM (NVRAM) in a 34-pin socket, XU2. A battery within the
    75 device supplies VCC to the NVRAM when main power is removed. The
    76 NVRAM provides for a low-battery indication which can be read by the
    77 processor. The first 4K of the NVRAM contains the vital product data (VPD) and
    78 should not be used. The remaining NVRAM is available for general use.
    8037= Battery =
    82 MBX series embedded controllers can use 3.0V–3.6V battery power
    83 (either on board, or external via utility connector #1) as a backup power
    84 source for the “keep-alive” power circuits (such as the real-time clock) in
    85 the processor.
    86 The lifetime of the battery is very dependent on the ambient temperature
    87 of the board and the power-on duty cycle. At 70° C, the worst-case elapsed
    88 time for battery protection is four years. Battery warning time is 24 hours
    89 minimum. At lower ambient temperatures the backup time is greatly
    90 extended.
    91 When a board is stored, the on-board battery should be disconnected to
    92 prolong battery life. This is especially important at high ambient
    93 temperatures.
    95 = Block diagram =
     40=  =Block diagram==
    9742[wiki:FileBlock_diagram.png FileBlock diagram.png]
    99 =  =References==
    101  httpwww.emersonnetworkpower.comen-USProductsEmbeddedComputingDocumentsDocumentationArchiveTechnicalDocumentation02mbxapg.pdf
    102  httpwww.equinox-tech.comdownloadsfreescaleMBXA_IH3.pdf