SPRUJ28E November 2021 – September 2024 AM68 , AM68A , TDA4AL-Q1 , TDA4VE-Q1 , TDA4VL-Q1
The secondary TR format is a TR that is fetched by the UTC when it is executing a TR to fill in additional information that does not fit in the original TR. It is not included in the standard TR as the information required in it is not required until execution time and is kept separate so the Channel FIFO space can be minimized. The first four words of the Secondary TR are always the real start address of the transfer followed by a Secondary TR Flags field. The remaining words in the secondary TR are defined by the Secondary TR TYPE from the Secondary TR Flags field.
word 15 | word 14 | word 13 | word 12 | ||||||||||||
Type Specific | |||||||||||||||
word 11 | word 10 | word 9 | word 8 | ||||||||||||
Type Specific | |||||||||||||||
word 7 | word 6 | word 5 | word 4 | ||||||||||||
Type Specific | |||||||||||||||
word 3 | word 2 | word 1 | word 0 | ||||||||||||
Type Specific | SECONDARY TR FLAGS | ADDR |