RFM23
Table 31. Interrupt or Status 2 Bit Set/Clear Description
Status
Name
Set/Clear Conditions
Bit
Goes high once the Sync Word is detected. Goes low once we are done
receiving the current packet.
iswdet
7
Goes high once the preamble is detected. Goes low once the sync is detected
or the RX wait for the sync times-out.
ipreaval
ipreainval
irssi
6
5
4
3
Self cleaning, user should use this as an interrupt source rather than a status.
Should remain high as long as the RSSI value is above programmed threshold
level
iwut
Wake time timer interrupt. Use as an interrupt, not as a status.
Low Battery Detect. When a low battery event is been detected this bit will be
set to 1. This interrupt event is saved even if it is not enabled by the mask
register bit and causes an interrupt after it is enabled. Probably the status is
cleared once the battery is replaced.
ilbd
2
Module ready goes high once we enable the xtal, TX or RX and a settling time
for the Xtal clock elapses. The status stay high unless we go back to Idle mode.
Power on status.
ichiprdy
ipor
1
0
Table 32. Detailed Description of Status Registers when not Enabled as Interrupts
Status
Name
Set/Clear Conditions
Bit
Goes high once the Sync Word is detected. Goes low once we are done
receiving the current packet.
iswdet
7
Goes high once the preamble is detected. Goes low once the sync is detected
or the RX wait for the sync times-out.
ipreaval
ipreainval
irssi
6
5
4
3
Self cleaning, user should use this as an interrupt source rather than a status.
Should remain high as long as the RSSI value is above programmed threshold
level
iwut
Wake time timer interrupt. Use as an interrupt, not as a status.
Low Battery Detect. When a low battery event is been detected this bit will be
set to 1. This interrupt event is saved even if it is not enabled by the mask
register bit and causes an interrupt after it is enabled. Probably the status is
cleared once the battery is replaced.
ilbd
2
Module ready goes high once we enable the xtal, TX or RX, and a settling time
for the Xtal clock elapses. The status stay high unless we go back to Idle mode.
Power on status.
ichiprdy
ipor
1
0
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