RF3000PCBA RFMD [RF Micro Devices], RF3000PCBA Datasheet - Page 21

• Manufacturer Part Number: RF3000PCBA
• Description: SPREAD-SPECTRUM BASEBAND MODEM
• Manufacturer: RFMD [RF Micro Devices]

Register 0x02 - CCA Control
CCA1, CCA0 - 802.11 CCA Mode:
RSSI_t - 6-bit RSSI threshold value for CCA.
Register 0x03 - Diversity and RSSI Value
* - Read Only
NOTE: The six (6) LSB’s are read-only and reflect the receiver status.
Diversity - RX diversity enable bit.
Default - 0
Cpantsel - Antenna selection bit in non-diversity mode.
Default - 0
RSSI5-0 - Output of the RSSI A/D - Read Only
Register 0x04 - RX Signal Field (Read only)
In DSSS modes, this value is the received byte of the received signal field. In FHSS, only the four (4) LSB’s are used.
*** - IEEE802.11b proposed modulation rates not currently supported.
Register 0x05 - RX Length Field MSB’s (Read only)
The upper byte of the length field received.
In DSSS mode, this value is the length in microseconds of the received data packet.
Rev A4 031216
RX_LN15
RX_Sig7
Diversity
CCA1
0 - No diversity, ANT SEL pin is forced to Cpantsel.
1 - Diversity active, RF3000 automatically selects ANT SEL pin.
0 - ANT SEL forced to 0.
1 - ANT SEL forced to 1.
CCA1
BIT 7
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
RX_LN14
Cpantsel
RX_Sig6
CCA0
CCA0
BIT 6
X
0
1
0
0
0
1
0
0
0
0
0
0
0
0
RSSI Threshold Sensitive
Acquisition Sensitive
Both
RX_LN13
BIT 5
RX_Sig5
RSSI_t5
RSSI5 *
0
0
1
1
0
0
0
0
0
0
0
0
CCA Mode
BIT 4
0
1
1
0
0
0
0
0
0
0
0
0
RX_LN12
RX_Sig4
RSSI_t4
RSSI4 *
BIT 3
1
0
0
1
0
0
0
0
0
0
0
0
RX_LN11
RX_Sig3
RSSI_t3
RSSI3 *
BIT 2
0
1
1
1
0
0
0
0
1
1
1
1
RX_LN10
RX_Sig2
RSSI_t2
RSSI2 *
BIT 1
1
0
1
1
0
0
1
1
0
0
1
1
RX_Sig1
BIT 0
RSSI_t1
RX_LN9
RSSI1 *
0
0
1
0
0
1
0
1
0
1
0
1
1Mbps DSSS
2Mbps DSSS
5.5Mbps DSSS
11Mbps DSSS
Reserved
1.5Mbps FSK***
Reserved
2.5Mbps FSK***
3Mbps FSK***
3.5Mbps FSK***
4Mbps FSK***
4.5Mbps FSK***
Received Mode
RX_Sig0
RX_LN8
RSSI_t0
RSSI0 *
RF3000
11-341