CC1101状态寄存器读取值问题

对主要配置寄存器的配置如下。现在的问题是，发送部分，在CC1101初始化后，我在主函数中 halSpiStrobe(CCxxx0_STX);  使其为发送模式，然后读取halSpiReadReg(CCxxx0_TXBYTES),显示的值为0079，如果在这条语句之前加上halSpiStrobe(CCxxx0_SFTX);清空;则TXBYTES显示为0015，TXBYTES理论值应该是在0到64之间不是吗？这两个值很奇怪。
还有，如果在设置为发送模式之后，读取 num=halSpiReadReg(CCxxx0_MARCSTATE); 仍然显示0079，按照datasheet上，应该是显示0x13表明在TX模式，不符。
spi读写等子函数都是参照ti提供的例程。接收模块也有类似的问题。所以现在发送接收还不能正常工作。求指导！
typedef struct S_RF_SETTINGS
[
    INT8U FSCTRL1;   // Frequency synthesizer control.
    INT8U FSCTRL0;   // Frequency synthesizer control.
    INT8U FREQ2;     // Frequency control word, high INT8U.
    INT8U FREQ1;     // Frequency control word, middle INT8U.
    INT8U FREQ0;     // Frequency control word, low INT8U.
    INT8U MDMCFG4;   // Modem configuration.
    INT8U MDMCFG3;   // Modem configuration.
    INT8U MDMCFG2;   // Modem configuration.
    INT8U MDMCFG1;   // Modem configuration.
    INT8U MDMCFG0;   // Modem configuration.
    INT8U CHANNR;    // Channel number.
    INT8U DEVIATN;   // Modem deviation setting (when FSK modulation is enabled).
    INT8U FREND1;    // Front end RX configuration.
    INT8U FREND0;    // Front end RX configuration.
    INT8U MCSM0;     // Main Radio Control State Machine configuration.
    INT8U FOCCFG;    // Frequency Offset Compensation Configuration.
    INT8U BSCFG;     // Bit synchronization Configuration.
    INT8U AGCCTRL2;  // AGC control.
         INT8U AGCCTRL1;  // AGC control.
    INT8U AGCCTRL0;  // AGC control.
    INT8U FSCAL3;    // Frequency synthesizer calibration.
    INT8U FSCAL2;    // Frequency synthesizer calibration.
         INT8U FSCAL1;    // Frequency synthesizer calibration.
    INT8U FSCAL0;    // Frequency synthesizer calibration.
    INT8U FSTEST;    // Frequency synthesizer calibration control
    INT8U TEST2;     // Various test settings.
    INT8U TEST1;     // Various test settings.
    INT8U TEST0;     // Various test settings.
    INT8U IOCFG2;    // GDO2 output pin configuration
    INT8U IOCFG0;    // GDO0 output pin configuration
    INT8U PKTCTRL1;  // Packet automation control.
    INT8U PKTCTRL0;  // Packet automation control.
    INT8U ADDR;      // Device address.
    INT8U PKTLEN;    // Packet length.
] RF_SETTINGS;

const RF_SETTINGS rfSettings =
[
    0x06,   // FSCTRL1   liu
    0x00,   // FSCTRL0   Frequency synthesizer control.     
    0x10,   // FREQ2     Frequency control word, high byte.
    0xB1,   // FREQ1     Frequency control word, middle byte.
    0x3B,   // FREQ0     Frequency control word, low byte.
         0xf6,   // MDMCFG4, liu
         0x83,   // 2.398kbps---liu
    0x13,   // MDMCFG2   Modem configuration.GFSK Mode---liu
    0x22,   // MDMCFG1   Modem configuration.
    0xF8,   // MDMCFG0   Modem configuration.
    0x00,   // CHANNR    Channel number.
         0x15,   // DEVIATN, liu
    0x56,   // FREND1    Front end RX configuration.
    0x10,   // FREND0    Front end RX configuration.
    0x18,   // MCSM0     Main Radio Control State Machine configuration.
    0x16,   // FOCCFG    Frequency Offset Compensation Configuration.liu
    0x6c,   // BSCFG     Bit synchronization Configuration.liu
    0x03,   // AGCCTRL2  AGC control.liu
    0x40,   // AGCCTRL1  AGC control.liu
    0x91,   // AGCCTRL0  AGC control.liu
    0xE9,   // FSCAL3    Frequency synthesizer calibration.
    0x2A,   // FSCAL2    Frequency synthesizer calibration.
    0x00,   // FSCAL1    Frequency synthesizer calibration.
    0x1F,   // FSCAL0    Frequency synthesizer calibration.
    0x59,   // FSTEST    Frequency synthesizer calibration.
    0x81,   // TEST2     Various test settings.
    0x35,   // TEST1     Various test settings.
    0x09,   // TEST0     Various test settings.
    0x0B,   // IOCFG2    GDO2 output pin configuration.
    0x06,   // IOCFG0    GDO0 output pin configuration. Refer to SmartRF?Studio User Manual for detailed pseudo register explanation.
    0x04,   // PKTCTRL1  Packet automation control.
    0x04,   // PKTCTRL0  Variable packet length mode. Packet length configured by the first byte after sync word
    0x00,   // ADDR      Device address.
    0x04,   // PKTLEN    4 bytes--liu
];