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PDF MCD221 Data sheet ( Hoja de datos )
| Número de pieza | MCD221 | |
| Descripción | CD-Interface and Audio Processor(CIAP) | |
| Fabricantes | Motorola Semiconductors | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de MCD221 (archivo pdf) en la parte inferior de esta página. Total 10 Páginas | ||
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MOTOROLA
SEMICONDUCTOR TECHNICAL DATA
Technical Summary
CDćInterface and Audio
Processor (CIAP)
This technical summary provides a brief description of the MCD221
CD–Interface and Audio Processor. A complete data sheet for the MCD221 is
available and can be ordered from your local Motorola sales office. The order
number is MCD221/D.
The MCD221 has two main functions. The first is to form an interface
between a CD drive unit and a CD–i or Photo–CD player. The connection to the
drive is designed for both applications and can be either a Digital Out (EBU
standard) interface, or an I2S plus subcode interface. The host interface can be
either a 68000 interface for CD–i players, or a serial (SPI) interface for
Photo–CD.
The second function of the MCD221 is to decode ADPCM (CD–i base case)
audio, to perform audio mixing functions as specified in the Green Book, and to
be able to add external audio to the base case audio. The MCD221 can also be
used for handling the ADPCM decoding for Photo–CD.
The main features of the MCD221 are as follows:
• Accepts Audio Inputs in I2S Format (MPEG1) for Mixing with CIAP Internal
Audio
• Output Can Be Either I2S or SONY Format
• Data Input Rate Can Be Up to 2 Times Normal Speed
• Can Connect to a Host via Either a 68K or Serial Interface
• 80–Pin Quad Flat Pack (QFP)
Order this document
by MCD221TS/D
MCD221
FU SUFFIX
QFP PACKAGE
CASE 841B–01
ORDERING INFORMATION
MCD221FU QFP
NOTE: Supply of this Video–CD IC does not convey an implied license under any patent right to use this IC in any Video–CD application.
CD–i is a registered trademark of Philips Consumer Electronics.
M© OMoTtoOroRla,OInLc.A1995
REV 0
2/95
MCD221
2–1
1 page  
CD DATA IN
FUNCTIONAL DESCRIPTION
DATA FLOW DIAGRAM
MCD221 CIAP
DATA INPUT (DI)
HOST INTERFACE
(HI)
68xxx
HOST INTERFACE
EXTERNAL AUDIO IN
AUDIO OUT
AUDIO PROCESSOR
(AP)
CONTROLLER (MC)
The MCD221 Data Flow Diagram should be used in con-
junction with the following notes which outline the function of
the various blocks within the device:
• The data input module consists of two parts; a main chan-
nel decoder and a subchannel decoder. Both decoders can
be active at the same time. The main channel decoder can
be in different modes; CD–DA mode, CD–ROM mode, or
CD–i mode.
• The audio processor module accepts an external audio
input and, after processing, generates an audio output.
• The microcode controller interface takes care of accept-
ing commands and passing data to the different parts of the
audio processing unit.
• The host interface takes care of addressing the internal
registers and buffers. The CIAP can interface with two pos-
sible hosts; a 68000 type host or a microcontroller that in-
terfaces via a serial link.
MOTOROLA
MCD221
2–5
5 Page | ||
| Páginas | Total 10 Páginas | |
| PDF Descargar | [ Datasheet MCD221.PDF ] | |
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