User's Manual
Table Of Contents
- Contents
- 1 Overview
- 2 DC and AC Characteristics
- 3 Electrical Interface
- 4 SPI Interface and Sequences
- 5 Power States
- 6 Messaging Protocol
- 7 microNode Provisioning
- 8 Antenna Diversity
- 9 Regulatory Considerations
- 10 Manufacturing Considerations
- 11 Errata
- Appendix A Abbreviations and Terms
- Appendix B PCB Land Pattern and Vias
- Appendix C REACH AND RoHS Compliance
- Appendix D On-Ramp Wireless RMA Process
- Appendix E microNode Mechanical Drawing
microNode Integration Specification SPI Interface and Sequences
On-Ramp Wireless, Inc. 21 014-0033-00 Rev. H
4.6 Host-Driven Reset Sequence
If the microNode fails to communicate (or similar), it may be necessary to Reset the microNode.
The following figure shows the proper sequence to reset the device.
NOTE 1: Resetting the device causes it to go through a Cold Acquisition process to reacquire the
network.
NOTE 2: The timing shown in the figure is not to scale.
Power On
t
0
t
1
t
2
t
3
t
4
t
5
t
6
1000 ms 10 ms 4 ms
SRDY
SPI
System
MRQ
Reset_N
V
BATT
Hi-Z
100 ms
(Driven as appropriate)
Figure 12. Host-Driven Reset Sequence