Motorola MBX Series Installation And Use Manual page 8

CHAPTER 4 VPD and ENV Commands
VPD-Display Vital Product Data ........................................................................... 4-1
ENV-Set Environment ........................................................................................... 4-2
CHAPTER 5 Functional Description
MBX Block Diagrams .............................................................................................. 5-1
MBX Features Summary .......................................................................................... 5-5
MBX Features Description ....................................................................................... 5-6
General Description ........................................................................................... 5-6
Processor ........................................................................................................... 5-7
MPC860 ..................................................................................................... 5-7
MPC821 ..................................................................................................... 5-8
Real-Time Clock/Timer Functions .................................................................... 5-8
DRAM ............................................................................................................... 5-9
Flash Memory .................................................................................................. 5-10
NVRAM .......................................................................................................... 5-11
On-board Backup Battery ................................................................................ 5-11
Switches and Status Indicators ........................................................................ 5-12
Abort Switch ............................................................................................ 5-12
Reset Switch ............................................................................................. 5-12
Status Indicators ....................................................................................... 5-13
Power Monitor Circuit ..................................................................................... 5-13
Peripheral I/O Controller ................................................................................. 5-13
Asynchronous Serial Port ......................................................................... 5-13
Parallel Port .............................................................................................. 5-14
2.88MB Floppy Disk Drive Controller .................................................... 5-15
Keyboard and Mouse Interface ................................................................ 5-15
Ethernet Interface ............................................................................................ 5-15
PCMCIA Interface .......................................................................................... 5-16
LCD Interface (MBX821 Only) ...................................................................... 5-16
MPC8xx Serial Communications Interface ..................................................... 5-17
MPC8xx Bus Interface .................................................................................... 5-18
PCI/ISA Interface ............................................................................................ 5-18
PCI/ISA Bridge Controller .............................................................................. 5-19
Polyswitches (Self-resetting Fuses) ................................................................. 5-20
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