WI.232FHSS-250-R Radiotronix, WI.232FHSS-250-R Datasheet - Page 52

• Manufacturer Part Number: WI.232FHSS-250-R
• Description: RF Modules & Development Tools 900MHz FHSS Low
• Manufacturer: Radiotronix

Specifications of WI.232FHSS-250-R

• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: WI232FHSS-250-R

WI.232FHSS-25-R/ WI.232FHSS-250-R DATASHEET
The module has a built-in exception engine that can notify the host processor of an unexpected event.
When an exception occurs, the exception code is stored in this register. Reading from this register clears
the exception and, if applicable, returns the EX pin to low. If an exception occurs before the previous
exception code is read, the previous value is overwritten. The following table lists the exception codes and
their values.
Table 22, Exception Codes
This register holds the receive strength indication, in dBm, of the last successful packet reception. A
successful packet reception is one that causes payload data to be delivered to the UART interface. Each
time a new packet is successfully processed, the value in this register is overwritten. The register value is
an 8-bit signed integer representing the RSSI in dBm. It is accurate to +/-3dB and has +/-2dB linearity. The
values returned take into account the LNA gain.
This register returns the current receive signal strength indication, in dBm. When the register is accessed,
the RF interface is queried at that time. The register value is an 8-bit signed integer representing the RSSI
R
D7
7
0x08
0x09
0x13
0x20
0x40
0x42
0x43
0x44
R
D7
7
R
D7
7
Exception
4.1.40. Exception (regEXCEPTION)
Code
4.1.41. Last Good Packet RSSI (regLGPRSSI)
4.1.42. Immediate RSSI (regIMMEDRSSI)
R
D6
6
R
D6
6
R
D6
6
EX_BUFOVFL
EX_RFOVL
EX_WRITEREGFAILED
EX_NOACK
EX_BADCRC
EX_BADHEADER
EX_BADSEQID
EX_BADFRAMETYPE
Exception Name
R
D5
5
R
D5
5
R
D5
5
Internal UART buffers overflowed
Internal RF packet buffer overflowed
Attempted write to register failed
Acknowledgment packet not received after maximum number of retries
Bad CRC detected on incoming packet
Bad CRC detected in packet header
Sequence ID was incorrect in ACK packet
Unsupported Frame type specified
R
D4
4
R
D4
4
R
D4
4
51
R
D3
3
R
D3
3
R
D3
3
Description
R
D2
2
R
D2
2
R
D2
2
regEXCEPTION (0x79)
regIMMEDRSSI (0x7C)
regLGPRSSI (0x7B)
R
D1
1
R
D1
1
R
D1
1
Revision 1.1.0
R
D0
0
R
D0
0
R
D0
0