User's Manual
Table Of Contents
- Description
- Features
- Ordering Information
- Absolute Maximum Ratings
- Electrical Specifications
- Typical Performance Graphs
- Pin Assignments
- Pin Descriptions
- Module Pin Assignments
- Module Dimensions
- Theory of Operation
- Module Description
- Overview
- Addressing Modes
- Automatic Addressing
- Address Register Use
- Acknowledgements and Assured Delivery
- Frequency Hopping Spread Spectrum
- Compatibility with the 250 Series
- Networking
- Transmitting Packets
- Receiving Packets
- Using the Buffer Empty (BE) Line
- Exception Engine
- Carrier Sense Multiple Access (CSMA)
- Using the Command Response (CRESP) Line
- Using the CMD Line
- AES Encryption
- Using the MODE_IND Line
- Using the PB Line
- Restore Factory Defaults
- Using the Low Power Features
- Baud Rate and Transmitter Output Power
- The Command Data Interface
- Reading from Registers
- Writing to Registers
- Command Length Optimization
- Example Code for Encoding Read/Write Commands
- The Command Data Interface Command Set
- Typical Applications
- Usage Guidelines for FCC Compliance
- Additional Testing Requirements
- Information to the user
- Product Labeling
- FCC RF Exposure Statement
- Antenna Selection
- Power Supply Requirements
- Antenna Considerations
- Interference Considerations
- Pad Layout
- Castellation Version Reference Design
- Microstrip Details
- Board Layout Guidelines
- Helpful Application Notes from Linx
- Production Guidelines
- Hand Assembly
- Automated Assembly
- General Antenna Rules
- Common Antenna Styles
- Regulatory Considerations
- Notes
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74 75
MYDSN - Local Device Serial Number
Non-Volatile Address = 0x34-0x37
These registers contain the factory-programmed read-only Device Serial
Number. This address is unique for each module and is included in all
packet types as a unique origination address.
Figure 76 shows the Device Serial Number registers.
CUSTID - Customer ID
Non-Volatile Address = 0x39-0x3A
These registers contain the factory-programmed customer ID. A unique
value is assigned to a specific customer and that value is programmed
into that customer’s modules. The unencrypted User and Extended User
Addressing modes use these bytes as part of the addressing. The unique
value ensures that the custom modules will not communicate with any
other systems. Contact Linx for details. Figure 77 shows the Customer ID
registers.
CRSSI - Carrier Sense Minimum RSSI
Non-Volatile Address = 0x3F
This value is the minimum RSSI that causes the module to wait for a
clear channel when CSMA is enabled. Figure 78 shows examples of the
commands.
The value is a negative number in two’s complement from -128 (0x80) to -1
(0xff). The default value is -70dBm.
HumPRO-A
TM
Series DSN Registers
Name
Non-Volatile
Address
Description
MYDSN3 0x34 MSB of the serial number
MYDSN2 0x35 Byte 2 of the serial number
MYDSN1 0x36 Byte 1 of the serial number
MYDSN0 0x37 LSB of the serial number
Figure 76: HumPRO-A
TM
Series DSN Registers
HumPRO-A
TM
Series Customer ID Registers
Name
Non-Volatile
Address
Description
CUSTID1 0x39 MSB of the customer ID
CUSTID0 0x3A LSB of the customer ID
Figure 77: HumPRO-A
TM
Series Transceiver Customer ID Registers
HumPRO-A
TM
Series Carrier Sense Minimum RSSI
Read Command Read Response
Header Size Escape Address ACK Address Value
0xFF 0x02 0xFE 0x3F 0x06 0x3F V
Write Command
Header Size Address Value
0xFF 0x02 0x3F V
Figure 78: HumPRO-A
TM
Series Transceiver Carrier Sense Minimum RSSI Command and Response
Warning: The CRSSI value can have a significant impact on the
performance of the module. Setting it too low could prevent the module
from ever transmitting. Setting it too high can result in transmission
collisions. Care must be taken if this value is adjusted.
!