參數(shù)資料
型號: MCD221FU
廠商: MOTOROLA INC
元件分類: 消費(fèi)家電
英文描述: CD-Interface and Audio Processor(CIAP)
中文描述: SPECIALTY CONSUMER CIRCUIT, PQFP80
封裝: QFP-80
文件頁數(shù): 5/10頁
文件大小: 187K
代理商: MCD221FU
MCD221
2–5
MOTOROLA
FUNCTIONAL DESCRIPTION
DATA FLOW DIAGRAM
DATA INPUT (DI)
CD DATA IN
AUDIO PROCESSOR
(AP)
HOST INTERFACE
(HI)
CONTROLLER (MC
)
MCD221 CIAP
EXTERNAL AUDIO IN
AUDIO OUT
68xxx
HOST INTERFACE
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.
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