AEU_INPUTS_ATTN_BITS_GRC_MAPPED_GENERAL_ATTN20
SET_FLAGS(val, AEU_INPUTS_ATTN_BITS_GRC_MAPPED_GENERAL_ATTN20); /* general attention 20 */
SET_FLAGS(val, AEU_INPUTS_ATTN_BITS_GRC_MAPPED_GENERAL_ATTN20); /* general attention 20 */
val |= AEU_INPUTS_ATTN_BITS_GRC_MAPPED_GENERAL_ATTN20;