Analog Devices ADSP-BF59x Blackfin, Hardware Reference Manual, Page: 546 / 772

Functional Description
14-40 ADSP-BF59x Blackfin Processor Hardware Reference
Figure 14-17 on page 14-41 and Figure 14-18 on page 14-41 show the
receive operation with normal framing and alternate framing, respectively,
in the unframed mode. A single frame sync signal occurs only at the start
of the first word, either one
RSCLK
before the first bit (in normal mode) or
at the same time as the first bit (in alternate mode). This mode is appro-
priate for multiword bursts (continuous reception).
Figure 14-15. SPORT Receive, Alternate Framing
Figure 14-16. SPORT Continuous Receive, Alternate Framing
B3 B3 B2 B1 B0 B2 B1 B0
SPORT CONTROL REGISTER:
BOTH INTERNAL FRAMING OPTION AND EXTERNAL FRAMING OPTION SHOWN.
DR REPRESENTS DRPRI AND/OR DRSEC, DEPENDING ON DESIRED CONFIGURATION.
RSCLK
RFS OUTPUT
DR
RFS INPUT
RSCLK
RFS OUTPUT
RFS INPUT
DR
B3 B2
B1
B0 B3 B2 B1 B0
SPORT CONTROL REGISTER:
BOTH INTERNAL FRAMING OPTION AND EXTERNAL FRAMING OPTION SHOWN
DR REPRESENTS DRPRI AND/OR DRSEC, DEPENDING ON DESIRED CONFIGURATION.