ADSP-BF60x Hardware Reference Rev.0.5, Table 26-16 shows SPORT_CTL_n.LFS =0 indicates Active High.
However, SPORT driver code which is located in
C:\Analog Devices\CrossCore Embedded Studio 2.3.0\Blackfin\lib\src\drivers\source\sport\adi_sport_bf6xx.c part from Line 1246 shows as follows and it seems this code indicates LFS bit =1 is Active High.
if(bActiveHighFS == true)
/* Select the Active High Frame Sync(FS)*/
nFsCfg |=(uint32_t) ENUM_SPORT_CTL_FS_HI;
Probably this driver code is incorrect and HRM is correct, but just in case, please make sure ?