28335的MCBSP中有FIFO增强功能嘛？

请问TMS320F28335的多通道缓冲接口MCBSP中有FIFO增强功能嘛？我买的教材上有讲MCBSP的FIFO增强功能，但TI官方给的MCBSP头文件中没有定义FIFO的寄存器，什么情况呢？

//---------------------------------------------------------------------------
// McBSP Register File:
//
struct  MCBSP_REGS {
   union DRR2_REG    DRR2;       // MCBSP Data receive register bits 31-16
   union DRR1_REG    DRR1;       // MCBSP Data receive register bits 15-0
   union DXR2_REG    DXR2;       // MCBSP Data transmit register bits 31-16
   union DXR1_REG    DXR1;       // MCBSP Data transmit register bits 15-0
   union SPCR2_REG   SPCR2;      // MCBSP control register bits 31-16
   union SPCR1_REG   SPCR1;      // MCBSP control register bits 15-0
   union RCR2_REG    RCR2;       // MCBSP receive control register bits 31-16
   union RCR1_REG    RCR1;       // MCBSP receive control register bits 15-0
   union XCR2_REG    XCR2;       // MCBSP transmit control register bits 31-16
   union XCR1_REG    XCR1;       // MCBSP transmit control register bits 15-0
   union SRGR2_REG   SRGR2;      // MCBSP sample rate gen register bits 31-16
   union SRGR1_REG   SRGR1;      // MCBSP sample rate gen register bits 15-0
   union MCR2_REG    MCR2;       // MCBSP multichannel register bits 31-16
   union MCR1_REG    MCR1;       // MCBSP multichannel register bits 15-0
   union RCERA_REG   RCERA;      // MCBSP Receive channel enable partition A
   union RCERB_REG   RCERB;      // MCBSP Receive channel enable partition B
   union XCERA_REG   XCERA;      // MCBSP Transmit channel enable partition A
   union XCERB_REG   XCERB;      // MCBSP Transmit channel enable partition B
   union PCR_REG     PCR;        // MCBSP Pin control register bits 15-0
   union RCERC_REG   RCERC;      // MCBSP Receive channel enable partition C
   union RCERD_REG   RCERD;      // MCBSP Receive channel enable partition D
   union XCERC_REG   XCERC;      // MCBSP Transmit channel enable partition C
   union XCERD_REG   XCERD;      // MCBSP Transmit channel enable partition D
   union RCERE_REG   RCERE;      // MCBSP Receive channel enable partition E
   union RCERF_REG   RCERF;      // MCBSP Receive channel enable partition F
   union XCERE_REG   XCERE;      // MCBSP Transmit channel enable partition E
   union XCERF_REG   XCERF;      // MCBSP Transmit channel enable partition F
   union RCERG_REG   RCERG;      // MCBSP Receive channel enable partition G
   union RCERH_REG   RCERH;      // MCBSP Receive channel enable partition H
   union XCERG_REG   XCERG;      // MCBSP Transmit channel enable partition G
   union XCERH_REG   XCERH;      // MCBSP Transmit channel enable partition H
   Uint16            rsvd1[4];   // reserved
   union MFFINT_REG  MFFINT;     // MCBSP Interrupt enable register for RINT/XINT
   Uint16            rsvd2;      // reserved
};