5 register description – Rainbow Electronics AT86RF231 User Manual
Page 87

87
8111A–AVR–05/08
AT86RF231
8.2.5
Register Description
Register 0x04 (TRX_CTRL_1):
The TRX_CTRL_1 register is a multi purpose register to control various operating modes and
settings of the radio transceiver.
• Bit 7 - PA_EXT_EN
Section 11.5 “RX/TX Indicator” on page 147
.
• Bit 6 - IRQ_2_EXT_EN
Section 11.6 “RX Frame Time Stamping” on page 150
• Bit 5 - TX_AUTO_CRC_ON
Register bit TX_AUTO_CRC_ON controls the automatic FCS generation for TX operations. The
automatic FCS algorithm is performed autonomously by the radio transceiver if register bit
TX_AUTO_CRC_ON = 1.
• Bit 4 - RX_BL_CTRL
Section 11.7 “Frame Buffer Empty Indicator” on page 152
• Bit [3:2] - SPI_CMD_MODE
Section 6.3 “Radio Transceiver Status information” on page 24
• Bit 1 - IRQ_MASK_MODE
Section 6.6 “Interrupt Logic” on page 29
• Bit 0 - IRQ_POLARITY
Section 6.6 “Interrupt Logic” on page 29
Register 0x06 (PHY_RSSI):
The PHY_RSSI register is a multi purpose register that indicates FCS validity, provides random
numbers and shows the actual RSSI value.
Bit
7
6
5
4
3
2
1
0
+0x04
PA_EXT_EN
IRQ_2_EXT_EN
TX_AUTO_CRC_ON
RX_BL_CTRL
SPI_CMD_MODE
IRQ_MASK_MODE
IRQ_POLARITY
TRX_CTRL_1
Read/Write
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Reset Value
0
0
1
0
0
0
0
0
Bit
7
6
5
4
3
2
1
0
+0x06
RX_CRC_VALID
RND_VALUE
RSSI
PHY_RSSI
Read/Write
R
R
R
R
R
R
R
R
Reset Value
0
0
0
0
0
0
0
0