MCD221

MOTOROLA

2–8

APPLICATION EXAMPLES

CIAP/CD–DRIVE ARCHITECTURE

In conjunction with a suitable microcontroller, MC68HC05

(IKAT), the MCD221 provides the functionality to connect an

MC68xxx host processor to a CD–Drive. The MCD221 de-

codes both main and subchannel CD data and plays both

MPEG1) may be input and mixed with the CIAP audio. CIAP

audio output can be in either I2S or Sony formats.

CD DRIVE

BIDIRECTIONAL CONTROL

INTERFACE

I2S MAIN CHANNEL DATA

SUBCHANNEL DATA

EXTERNAL AUDIO IN

68xxx HOST INTERFACE

I2S

AUDIO

OUT

DAC

L

R

EXTERNAL AUDIO

SOURCE

(e.g., MCD270

MPEG DECODER)

MC68HC05

(IKAT)

MCD221

CIAP

(CD INTERFACE

PLUS AUDIO

PROCESSOR)