COMM_CHAN_EVENT_INTERNAL_ERR
return (u32)COMM_CHAN_EVENT_INTERNAL_ERR ==
(slave_read & (u32)COMM_CHAN_EVENT_INTERNAL_ERR) ? 1 : 0;
reply |= ((u32)COMM_CHAN_EVENT_INTERNAL_ERR);
slave_read |= (u32)COMM_CHAN_EVENT_INTERNAL_ERR;