14.3.2.2 Handling of Reserved Frame Types

Reserved frame types are treated according to the AACK_UPLD_RES_FT and AACK_FLTR_RES_FT bits in the XAH_CTRL_1 register (XAH_CTRL_1.AACK_UPLD_RES_FT and XAH_CTRL_1.AACK_FLTR_RES_FT) with three options:

1. AACK_UPLD_RES_FT = 1, AACK_FLT_RES_FT = 0:

   Any non-corrupted frame with a reserved frame type is indicated by an IRQ_3 (TRX_END) interrupt. No further address filtering is applied on those frames. An IRQ_5 (AMI) interrupt is never generated and the acknowledgment subfield is ignored.

2. AACK_UPLD_RES_FT = 1, AACK_FLT_RES_FT = 1:

   If AACK_FLT_RES_FT = 1 any frame with a reserved frame type is filtered by the address filter similar to a data frame as described in the standard. This implies the generation of the IRQ_5 (AMI) interrupts upon address match. An IRQ_3 (TRX_END) interrupt is only generated if the address matched and the frame was not corrupted. An acknowledgment is only send, when the ACK request subfield was set in the received frame and an IRQ_3 (TRX_END) interrupt occurred.

3. AACK_UPLD_RES_FT = 0:

   Any received frame with a reserved frame type is discarded.