Freescale Semiconductor DSP56366 - Manual (Page 184)

ESAI Programming Model
DSP56366 24-Bit Digital Signal Processor User Manual, Rev. 4
8-34 Freescale Semiconductor
Figure 8-11 SAICR SYN Bit Operation
8.3.6 ESAI Status Register (SAISR)
The Status Register (SAISR) is a read-only status register used by the DSP to read the status and serial
input flags of the ESAI. See
Figure 8-12 . The status bits are described in the following paragraphs.
EXTERNAL FRAME SYNC
FSR
ASYNCHRONOUS (SYN=0)
TRANSMITTER
CLOCK
FRAME
SYNC
RECEIVER
CLOCK FRAME
SYNC
SDI
SDO
FST
EXTERNAL TRANSMIT FRAME SYNC
EXTERNAL RECEIVE FRAME SYNC
INTERNAL FRAME SYNC
SCKR
SCKT
EXTERNAL TRANSMIT CLOCK
EXTERNAL RECEIVE CLOCK
INTERNAL CLOCK
ESAI BIT
CLOCK
NOTE: Transmitter and receiver may have different clocks and frame syncs.
SYNCHRONOUS (SYN=1)
TRANSMITTER
CLOCK
FRAME
SYNC
RECEIVER
CLOCK FRAME
SYNC
SDI
SDO
FST
INTERNAL FRAME SYNC
SCKT
EXTERNAL CLOCK
INTERNAL CLOCK
ESAI BIT
CLOCK
NOTE: Transmitter and receiver have the same clocks and frame syncs.