Texas Instruments TMS320C28x, Reference Manual

Page: 577 / 695

Data Logging
7-24
(DMA_CNTRL). EVT_CNTRL is described in Table 7 − 5 (page 7-26),
and DMA_CNTRL is described in Table 7 − 4 (page 7-25).
Note:
The application must not read from the end address of the buffer during the
data logging operation. When the end address appears on the address bus,
the C28x ends the transfer.
4) Execute the EDIS instruction to disable access to emulation registers.
See Table 7 − 4 and Table 7 − 5 on the following pages for descriptions of the
registers associated with data logging.
Figure 7 − 6. ADDRL (at Data-Space Address 00 0838
16
)
15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
16 LSBs of transfer address
Figure 7 − 7. ADDRH (at Data-Space Address 00 0839
16
)
15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
Word counter Reserved 6 MSBs of transfer address
Figure 7 − 8. REFL (at Data-Space Address 00 084A
16
)
15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
16 LSBs of end address
Figure 7 − 9. REFH (at Data-Space Address 00 084B
16
)
15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
0 0 0 0 0 0 0 0 0 0 6 MSBs of end address