SCF5249VM140 datasheet(22/56 Pages) FREESCALE

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SCF5249 Integrated ColdFire® Microprocessor Data Sheet, Rev. 3

Signal Descriptions

Freescale Semiconductor

8.12 Digital Audio Interface Signals

NOTE

The EBUOUT2 signal is only used on the 160 MAPBGA package.

8.13 Subcode Interface

There is a 3-line subcode interface on the SCF5249. This 3-line subcode interface allows the device to

format and transmit subcode in EIAJ format to a CD channel encoder device. The three signals are

described in Table 11.

NOTE

The SUBR, SFSY, and the RCK signals are only used in the 160 MAPBGA

package.

Table 10. Digital Audio Interface Signals

Serial Module Signal

Description

Digital Audio In

The EBUIN1/GPI36, EBUIN2/GPI37, EBUIN3/ADIN0/GPI38, and

EBUIN4/ADIN1/GPI39 multiplexed signals can serve as general

purpose input or can be driven by various digital audio (IEC958) input

sources. Both functionalities are always active. Input chosen for

IEC958 receiver is programmed within the audio module. Input value

on the 4 pins can always be read from the appropriate gpio register..

Digital Audio Out

The EBUOUT1_GPO36 and EBUOUT2_GPO37 multiplexed pins can

serve as general purpose I/O or as digital audio (IEC958) output.

EBUOUT1 is digital audio out for consumer mode, EBUOUT2 is digital

audio out for professional mode. The functionality of the pins is

programmed with the GPIO-FUNCTION and GPIO1-FUNCTION

Table 11. Subcode Interface Signal

Signal name

Description

RCK/GPIO51

Subcode clock input. When pin is used as subcode clock, this pin is

driven by the CD channel encoder.

SFSY/GPIO52

Subcode sync output

This signal is driven high if a subcode sync needs to be inserted in the

EFM stream.

SUBR/GPIO53

Subcode data output

This signal is a subcode data out pin.

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