AMIS-53050 Datasheet, PDF (53/107 Pages) AMI SEMICONDUCTOR – Frequency Agile Transceiver

AMIS-53050 Frequency Agile Transceiver
Data Sheet
6.4.5.2. Status/Flag2
The Status2 register provides information on the operating status of the part. The busy bit is asserted for any of the following reasons:
Calibration: The busy bit will remain high for the duration of a calibration sequence. Status2 can be repeatedly polled during
a calibration sequence to determine when it’s complete.
Read/Write EE: While the AMIS-53050 is reading from or writing to the EE, the busy bit will remain set.
Buffered RX: When in the receive mode and a valid chip ID is found, the AMIS-53050 will begin the processing of this packet.
During the time the packet is being processed, the busy bit will be set high.
Buffered TX: After the command is given for transmit with the buffered packet option enabled, the busy bit will remain high
until the part has completed the actual transmission of the packet.
Housekeeping: Busy is asserted during a housekeeping cycle.
Burst TX: Busy is asserted during a burst transmission.
Status2 also contains information on the reason an interrupt was issued to the external host.
The CCA channel status bits provide information back to the host on which channel within the multi-channels is being used for
communication. After a CCA enabled transmission, these bits will be set to indicate which channel was used. For multi-
channel enabled receivers performing multi-channel sniff, these bits are used to indicate the channel upon which either energy
or an entire packet was found.
When the CCA is enabled, Bit 0 (CCA failed) is used to indicate whether or not the channel is clear. The flags will be reset
when the register is read.
Table 29: Status/Flag2 - 0X02 [2]
Bit
Name
State
7:4
CCA Channel
[3:0]
111
110
101
3:1
Interrupt type 100
011
010
001
000
1
0
Busy
0
Comment
Indicates channel selected during CCA
RX CRC failed
Receive energy dwell timer timed out
CCA failed
Transmit complete
Buffer data for TX
Data has been received
Housekeeping
Low battery
AMIS-53050 is busy
AMI Semiconductor – Jan. 07, M-20639-002
53
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