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CHAPTER 6 Jumpers, Connectors, and LEDs
MBX821/860 Connectors, Headers, LEDs .............................................................. 6-1
MBX Jumper Headers .............................................................................................. 6-3
Jumper Settings in Brief .................................................................................... 6-3
J1 Backup Power Configuration ....................................................................... 6-4
J3 Boot ROM Write Protection ......................................................................... 6-5
J4 Boot ROM Device Selection ........................................................................ 6-6
J5 Test/Debug Port Selection ............................................................................ 6-7
J6 Arbitration Mode .......................................................................................... 6-8
J7 IDE Interface Configuration ......................................................................... 6-9
J8–J10 DRAM DIMM Size ............................................................................ 6-10
J11 DREQ# Signal Source for DMA-type PCMCIA Cards ........................... 6-10
MBX Connectors and Pin Assignments ................................................................. 6-12
Power Connector J12 ...................................................................................... 6-12
Analog Power Connector J28 ......................................................................... 6-12
Test Port Header J23 ....................................................................................... 6-13
Debug Port Header J24 ................................................................................... 6-13
Parallel I/O Header J13 ................................................................................... 6-14
Serial Port Header J18 .................................................................................... 6-15
Ethernet 10BaseT Connector J15 .................................................................... 6-16
Ethernet AUI Header J20 ................................................................................ 6-16
8xx/COMM Expansion Connectors ............................................................... 6-17
Utility Connector J16 ...................................................................................... 6-21
LCD & SPI Connector J27 (MBX821) ........................................................... 6-22
PC/104-Plus (PCI) Expansion Connector P2 .................................................. 6-23
PC/104 (ISA) Expansion Connector J21/J22 .................................................. 6-25
EIDE Connector J14 ....................................................................................... 6-26
Floppy Disk Connector J17 ............................................................................. 6-28
Utility Connector J19 ...................................................................................... 6-29
MBX LED Status Indicators .................................................................................. 6-29
APPENDIX A Specifications
General Specifications ..............................................................................................A-1
Power Requirements ................................................................................................A-2
Cooling Requirements ..............................................................................................A-3
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