RF3000 データシートの表示（PDF） - RF Micro Devices
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RF3000 Datasheet PDF : 28 Pages
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RF3000
Register 0x02 - CCA Control
CCA1
CCA0
RSSI_t5
RSSI_t4
CCA1, CCA0 - 802.11 CCA Mode:
CCA1 CCA0
CCA Mode
0
0
RSSI Threshold Sensitive
0
1
Acquisition Sensitive
1
X Both
RSSI_t - 6-bit RSSI threshold value for CCA.
RSSI_t3
RSSI_t2
Register 0x03 - Diversity and RSSI Value
Diversity
Cpantsel
RSSI5 *
RSSI4 *
RSSI3 *
RSSI2 *
* - Read Only
NOTE: The six (6) LSB’s are read-only and reflect the receiver status.
Diversity - RX diversity enable bit.
Default - 0
0 - No diversity, ANT SEL pin is forced to Cpantsel.
1 - Diversity active, RF3000 automatically selects ANT SEL pin.
Cpantsel - Antenna selection bit in non-diversity mode.
Default - 0
0 - ANT SEL forced to 0.
1 - ANT SEL forced to 1.
RSSI5-0 - Output of the RSSI A/D - Read Only
Register 0x04 - RX Signal Field (Read only)
RX_Sig7 RX_Sig6 RX_Sig5 RX_Sig4
RX_Sig3
RX_Sig2
RSSI_t1
RSSI1 *
RX_Sig1
RSSI_t0
RSSI0 *
RX_Sig0
In DSSS modes, this value is the received byte of the received signal field. In FHSS, only the four (4) LSB’s are used.
BIT 7 BIT 6 BIT 5 BIT 4 BIT 3 BIT 2 BIT 1 BIT 0 Received Mode
0
0
0
0
1
0
1
0
1Mbps DSSS
0
0
0
1
0
1
0
0
2Mbps DSSS
0
0
1
1
0
1
1
1
5.5Mbps DSSS
0
1
1
0
1
1
1
0
11Mbps DSSS
0
0
0
0
0
0
0
0
Reserved
0
0
0
0
0
0
0
1
1.5Mbps FSK***
0
0
0
0
0
0
1
0
Reserved
0
0
0
0
0
0
1
1
2.5Mbps FSK***
0
0
0
0
0
1
0
0
3Mbps FSK***
0
0
0
0
0
1
0
1
3.5Mbps FSK***
0
0
0
0
0
1
1
0
4Mbps FSK***
0
0
0
0
0
1
1
*** - IEEE802.11b proposed modulation rates not currently supported.
1
4.5Mbps FSK***
Register 0x05 - RX Length Field MSB’s (Read only)
RX_LN15 RX_LN14 RX_LN13 RX_LN12 RX_LN11 RX_LN10 RX_LN9
The upper byte of the length field received.
In DSSS mode, this value is the length in microseconds of the received data packet.
RX_LN8
Rev A4 031216
11-341
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