PROC_BOOT_CFG_FLAG_R5_ATCM_EN
set_cfg |= PROC_BOOT_CFG_FLAG_R5_ATCM_EN;
clr_cfg |= PROC_BOOT_CFG_FLAG_R5_ATCM_EN;
atcm_enable = cfg & PROC_BOOT_CFG_FLAG_R5_ATCM_EN ? 1 : 0;