5
Contents
About This Guide .....................................................................................................................7
Purpose.............................................................................................................................7
Related Documentation....................................................................................................7
Chapter 1:  Introducing the Digi Connect SP & Digi Connect Wi-SP Hardware ............9
Hardware Overview .........................................................................................................9
LEDs...............................................................................................................................11
Reset Button...................................................................................................................12
Antenna ..........................................................................................................................13
MEI 232/422/485 Switch Settings .................................................................................13
DB-9 Connector .............................................................................................................14
JTAG Interface...............................................................................................................15
Power Jack......................................................................................................................16
Chapter 2:  Programming Considerations..........................................................................19
GPIO...............................................................................................................................19
GPIO Pin Use.................................................................................................................21
LEDs...............................................................................................................................21
Flash ...............................................................................................................................22
Memory..........................................................................................................................22
Reset Button...................................................................................................................23
Appendix A: Specifications.................................................................................................. 25
Network Interfaces.........................................................................................................25
Serial Interface ...............................................................................................................26
Data Rates (bps) .............................................................................................................26
Flow Control Options.....................................................................................................26