
MOTOROLA
Audio Functions
17-1
Section 17
Audio Functions
17.1
AUDIO INTERFACE OVERVIEW
The audio interface module allows the MCF5249 to receive and transmit digital audio over serial audio
interfaces (IIS/EIAJ) and over digital audio interfaces (IEC958).
The MCF5249 is equipped with four serial audio interfaces compliant with Philips IIS and Sony EIAJ
format. The MCF5249 has two IEC958 receivers with 4 multiplexed inputs, and one IEC958 transmitter
with two outputs: One for the professional C-channel and one for the consumer C-channel.
The audio interfaces block allows the direct retransmission of an audio signal received on one receiver to
another transmitter, without CPU intervention, or it allows the CPU to receive or transmit digital audio
to/from any of the audio interfaces.
The IEC958 receivers and transmitter support main audio. Also, the MCF5249 features allow the handling
of IEC958 C and U channels.
A frequency measurement block exists to allow precise measurement of an incoming sampling frequency.
F
re
e
sc
a
le
S
e
m
ic
o
n
d
u
c
to
r,
I
Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
n
c
..
.