SDCR4_BRD
(((Div) - 16)/16 >> FSize (SDCR4_BRD) << \
(((Div) - 16)/16 & FAlnMsk (SDCR4_BRD) << \
FShft (SDCR4_BRD))
(((Div) - 1)/16 >> FSize (SDCR4_BRD) << \
(((Div) - 1)/16 & FAlnMsk (SDCR4_BRD) << \
FShft (SDCR4_BRD))