Changes between Version 5 and Version 6 of TBR/BSP/Mbx821_002b

Dec 6, 2011, 10:17:41 PM (8 years ago)


  • TBR/BSP/Mbx821_002b

    v5 v6  
    66| Manufacturer = Motorola
    77|Board_URL =
     8|NVRAM        = 32 KB NVRAM
    89|Architecture = OS-9 based RTOS
    9 |RAM          = MPC821.4MB DRAM
    10 |CPU_model    = Motorola 40MHZ
     10|RAM          = 4MB DRAM
     11|NVMEM = One bank 32-bit Flash (2MB, 4MB, or 8MB)
     12|CPU_model    = MPC821 40MHZ
     13|Serial       = Two additional EIA-232-D serial ports
    1215= Overview =
    3841 * keyboard, mouse, IR, COM1 and COM2 ports;
    3942 * LCD panel connector
     43= Processor =
     45The processor chip used on MBX series boards is either an MPC860
     46PowerQUICC® ( PowerPC® Quad Integrated Communications
     47Controller) microprocessor or an MPC821 Portable Systems
     48microprocessor. The processor is surface-mounted to the MBX board. The
     49MPC8xx is a single-chip microprocessor/peripheral combination that lends
     50itself to a variety of controller applications. It incorporates many of the
     51communications/networking capabilities and peripheral I/O functions
     52offered by the overall MBX product.
    4053= DRAM =
    42 The MBX821-002b has 4MB of DRAM, soldered in place.
     55The MBX821-002b has 4MB of DRAM, soldered in place. The MBX series embedded controller has provision for either 4MB or
     5616MB of on-board DRAM, soldered in place. In addition, it
     57accommodates 8MB to 128MB of expansion DRAM in a 168-pin DIMM
     58(dual in-line memory module) socket, XU3.
     59The on-board DRAM is composed of two 16-bit devices (either 1M x 16
     60or 4M x 16). Parity protection is optional
    4361= Flash Memory =
    45 Flash memory on the MBX821-002b embedded controller consists of 4MB.
     63Flash memory on the MBX821-002b embedded controller consists of 4MB. Flash memory on the MBX series embedded controller consists of 2MB,
     644MB, or 8MB of memory in one bank of four devices soldered directly to
     65the board. The EPPCBug firmware resident in Flash memory is originally
     66loaded at the factory, but the Flash contents can be reprogrammed if
     68= I/O =
     70 * Serial I/O - EIA-232-D serial console or terminal port (DCE/DTE)
     71 * Parallel I/O - IEEE 1284 parallel port with host/peripheral mode selection
     72 * Ethernet I/O - Support for AUI and 10BaseT Ethernet interface
     73 * PCMCIA interface - One PCMCIA slot (type I, II, or III devices)
     74 * LCD interface (MPC821 only) - Support for both active and passive LCD panels via 24-pin header on MPC821-powered MBX boards
     75 * Floppy disk controller - Support for direct ribbon cable connection to 2.88MB floppy disk drive via header on MBX board
     76 * Keyboard/mouse interface - Support for keyboard and mouse input via header on MBX board
    4677= NVRAM =
    48 The MBX821-001 embedded controller accommodates 32KB of non- volatile RAM (NVRAM).
     79The 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
     80device supplies VCC to the NVRAM when main power is removed. The
     81NVRAM provides for a low-battery indication which can be read by the
     82processor. The first 4K of the NVRAM contains the vital product data (VPD) and
     83should not be used. The remaining NVRAM is available for general use.
    4984= Processor =
    5691source for the “keep-alive” power circuits (such as the real-time clock) in
    5792the processor.
    58 =  =Block diagram==
     93The lifetime of the battery is very dependent on the ambient temperature
     94of the board and the power-on duty cycle. At 70° C, the worst-case elapsed
     95time for battery protection is four years. Battery warning time is 24 hours
     96minimum. At lower ambient temperatures the backup time is greatly
     98When a board is stored, the on-board battery should be disconnected to
     99prolong battery life. This is especially important at high ambient
     101= Block diagram =
    60103[wiki:File:Block_diagram.png File:Block diagram.png]
     104=  =References==
     106 *