Esai Status Register (Saisr) - Freescale Semiconductor DSP56374 User Manual

EXTERNAL TRANSMIT CLOCK
SCKT
INTERNAL CLOCK
ESAI BIT
CLOCK
EXTERNAL RECEIVE CLOCK
SCKR
NOTE: Transmitter and receiver may have different clocks and frame syncs.
EXTERNAL CLOCK
SCKT
INTERNAL CLOCK
ESAI BIT
CLOCK
NOTE: Transmitter and receiver have the same clocks and frame syncs.
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
8-12. The status bits are described in the following paragraphs.
Freescale Semiconductor
ASYNCHRONOUS (SYN=0)
TRANSMITTER
FRAME
CLOCK
CLOCK FRAME
RECEIVER
SYNCHRONOUS (SYN=1)
TRANSMITTER
FRAME
CLOCK
CLOCK FRAME
RECEIVER
Figure 8-11. SAICR SYN Bit Operation
DSP56374 Users Guide, Rev. 1.2
ESAI Programming Model
SDO
SYNC
EXTERNAL TRANSMIT FRAME SYNC
INTERNAL FRAME SYNC
EXTERNAL RECEIVE FRAME SYNC
SYNC
SDI
SDO
SYNC
EXTERNAL FRAME SYNC
INTERNAL FRAME SYNC
SYNC
SDI
FST
FSR
FST
Figure
8-25