IQM_RC_ADJ_SEL__A
rc = drxj_dap_write_reg16(dev_addr, IQM_RC_ADJ_SEL__A, IQM_RC_ADJ_SEL_B_VSB, 0);
rc = drxj_dap_write_reg16(dev_addr, IQM_RC_ADJ_SEL__A, 1, 0);
status = write16(state, IQM_RC_ADJ_SEL__A, 1);