MDEV-868-PRC datasheet(34/55 Pages) LINX

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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 57 shows the Device Serial Number registers.

CUSTID - Customer ID

Non-Volatile Address = 0x39-0x3A

These registers are not used by the HumPRCTM application and do

not have any effect on its operation. Figure 58 shows the Customer ID

registers.

CSRSSI - 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 59 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 -92dBm, which is the maximum limit for ETSI

compliance.

HumPRCTM 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 57: HumPRCTM Series DSN Registers

HumPRCTM Series Customer ID Registers

Name

Non-Volatile

Address

Description

CUSTID1

0x39

MSB of the customer ID

CUSTID0

0x3A

LSB of the customer ID

Figure 58: HumPRCTM Series Transceiver Customer ID Registers

HumPRCTM Series Carrier Sense Minimum RSSI

Read Command

Read Response

Header

Size

Escape

Address

ACK

Address

Value

0xFF

0x02

0xFE

0x3F

0x06

0x3F

Write Command

Header

Size

Address

Value

0xFF

0x02

0x3F

Figure 59: HumPRCTM 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.

Note: Changing this setting from its default value of 0x02 invalidates the

HUM-868-PRO module Declaration of Conformity (DoC).

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