Cirrus Logic EP73xx - Manual (Page 145)

EP7309/11/12 User’s Manual - DS508UM4 16-21
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Copyright Cirrus Logic, Inc. 2003
DAI/CODEC/SSI2
1616
16
buffer. Data from this buffer is then serialized and sent to or received
from the codec sound device. When the codec is enabled, the codec
interrupt CSINT is generated repetitively at 1/8th of the byte
transfer rate and the state of the FIFOs can be read in the system
flags register. The net data transfer rate to/from the codec device is
8 KBps, giving an interrupt rate of 1 kHz.