Analog Devices ADSP-BF59x Blackfin Hardware Reference Manual page 522

Description of Operation
Figure 14-6 on page 14-16
transfer that has these characteristics:
• Use TDM method where serial data is sent or received on different
channels sharing the same serial bus
• Can independently select transmit and receive channels
• signals start of frame
RFS
• is used as "transmit data valid" for external logic, true only dur-
TFS
ing transmit channels
• Receive on channels 0 and 2, transmit on channels 1 and 2
• Multichannel frame delay is set to 1
See "Timing Examples" on page 14-38
MFD = 1
RSCLK
DR
RFS
DT
TFS
Figure 14-6. Multichannel Operation
14-16
shows example timing for a multichannel
CHANNEL 0
B3 B2 B1
B0
ADSP-BF59x Blackfin Processor Hardware Reference
for more examples.
CHANNEL 1
IGNORED
B3 B2 B1 B0
CHANNEL 2
B2
B3
B3 B2