U2 PL
DFX_EN                          :0x0
DFX_EN_TIMER                    :0x0
DFX_REC_BYTE_NUM                :0
DFX_SEND_BYTE_NUM               :0
DFX_REC_PKT_NUM_MASK            :0xffff
DFX_REC_GOOD_PKT_NUM            :0
DFX_REC_BAD_PKT_NUM             :0
DFX_SEND_PKT_NUM_MASK           :0xffff
DFX_SEND_PKT_NUM                :0
DFX_ERROR                       :0x0
