__IOuint32_tSWIQ:1;/**< Compensation for quadrature polarity. (set to 1 for RevB) */
__IOuint32_tLIF:1;/**< Allows the receiver to use a low-IF frequency of +1.23 MHz (0) or -1.23 MHz (1). */
__IOuint32_tPM:1;/**< Preamble Mode: Mode 0 (high sensitivity) <20> Preamble detection is based on observation of a regular pattern of correlation peaks over a span of 5 consecutive symbol periods. Each symbol period produces a time index and frequency index corresponding to the largest correlation peak. If 4 out of 5 symbol periods produce time/frequency index values that meet a set of similarity criteria, then preamble detection is declared. This mode improves preamble detection rate by tolerating one corrupt correlation result in the span of 5 symbols. However, the relaxed detection rule allows a higher rate of false preamble detection when no signal is present. Mode 1 (low false detection) <20> Preamble detection is based on a span of 4 consecutive symbol periods. Each symbol period produces a time index and frequency index corresponding to the largest correlation peak. If all four symbol periods produce time/frequency index values that meet a set of similarity criteria, then preamble detection is declared. This mode enforces a more strict detection rule and therefore offers lower rate of false preamble detection at the expense of higher missed detection. */
__IOuint32_tASM:1;/**< This bit determines whether antenna selection is automatic (1) or manual (0). For applications that do not use antenna diversity, this bit should be set to 0. */
__IOuint32_tAS:1;/**< If automatic antenna selection mode is used, this bit determines the initial antenna selection. If manual antenna selection mode is used, this bit determines the antenna selection, 0 or 1. */
__IOuint32_tDTC:1;/**< Sets the decay time constant used in the RSSI calculation and Digital Gain Control functions. 0: Time constant set to 1 symbol period. This produces a slower response time but more stable RSSI values. Not recommended for use with antenna diversity. 1: Time constant set to 1/4th of a symbol period. This produces a faster response with slightly more variance in the RSSI calculation. Recommended for most cases. */
__IOuint32_tDFR:16;/**<Selectively enables individual frequency offsets used during preamble search. Each of the 15 bits in this field corresponds to one of 15 different frequency offsets. A bit value of 0 removes a specific frequency offset from the search, while a bit value of 1 includes the frequency offset in the search. */
__IOuint32_tDST:4;/**< This value specifies the SFD search period in symbols. After preamble detection, the demodulator begins symbol recovery and searches for the start-of-frame delimiter (SFD). If the SFD is not found within the number of symbols specified, the preamble detection flag is cleared and a new preamble search is initiated. The default value of 8 symbols should be sufficient for 802.15.4 compliant applications. Default 8 */
__IOuint32_tDPT:6;/**< The similarity criteria used for preamble detection includes a rule that all time index values must occupy a span equal to or less than this value. The default span of 0011 means that the correlation peaks must span a range of 3Ts, where Ts is the sample period = 0.25 <20>s. This value is recommended for typical multipath conditions. Very long-range applications may benefit from a higher value. Default 3 */
__IOuint32_tDPF:4;/**< The similarity criteria used for preamble detection includes a rule that all frequency index values must occupy a span equal to or less than this value. The default span of 0001 means that the difference between largest frequency index and smallest frequency index must be less than or equal to 1. Default 1 */
__IOuint32_tDCT:4;/**< In order for preamble detection to be declared, the correlation peaks must exceed a threshold. The threshold is computed dynamically and includes a programmable scale factor: 1 + bit[27]/2 + bit[26]/4 + bit[25]/8 + bit[24]/16 The default value of 1.5 is recommended for manual-antenna selection, while a value of 1.75 is recommended for automatic antenna selection. */
__IOuint32_tRSSI_THRESHOLD:8;/**< Threshold value used to determine clear channel assessment (CCA) result. The channel is declared busy if RSSI > threshold. Default 0xFF */
__IOuint32_tRSSI_OFFSET:6;/**< Calibration constant added to the RSSI calculation. The 6-bit field is treated as a signed value in two<77>s complement format with values from -32 to +31 dB. */
__Iuint32_tRSSI_VALUE:8;/**< The value is captured at the end of packet reception or at the end of ED/CCA measurements and is interpreted in dBm as follows: 00000000 -> 0127dBm (or below) ... 01111111 -> 0dBm (or above) */
__Iuint32_tFREQUENCY_OFFSET:4;/**< Frequency correction applied to the received packet. The value is captured at the end of packet reception or at the end of ED/CCA measurements. */
__Iuint32_tANT:1;/**< Antenna used for reception. The value is captured at the end of packet reception or at the end of ED/CCA measurements. */
__Iuint32_tRSSI_COMPONENT:4;/**< Magnitude of the baseband digital signal (units are dB relative to A/D saturation). The value is updated until AGC is frozen. The value is captured at the end of packet reception or at the end of ED/CCA measurements. */