SPRUJ17H March 2022 – October 2024 AM2631 , AM2631-Q1 , AM2632 , AM2632-Q1 , AM2634 , AM2634-Q1
The FSI hardware can generate and handle many predefined frame types. The different frame types can be used by the application to signal different types of events or convey different information to the receiver. The different frame types influence which phases and data fields to include in the transmitted frames.
Table 7-179 provides a short overview of the different frame types used by the FSI. Each frame type is described in more detail in the following subsections.
Frame Type | 4-bit Frame Code | Description |
---|---|---|
PING | 0000 | This is the ping frame that can be sent either by software or automatically by hardware. |
ERROR | 1111 | This must be used typically during error conditions or any condition where one side wants to signal the other side for attention. However, the user software can use this for any purpose. |
DATA_1_WORD | 0100 | 1 word data packet (16 bits of data) |
DATA_2_WORD | 0101 | 2 word data packet (32 bits of data) |
DATA_4_WORD | 0110 | 4 word data packet (64 bits of data) |
DATA_6_WORD | 0111 | 6 word data packet (96 bits of data) |
DATA_N_WORD | 0011 | N(1-16) word data packet where software has programmed the number of the data words in a designated register. Both transmitter and receiver modules must have the same value programmed. |
Reserved | 0001, 0010, and 1000-1110 | Reserved |