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AT83SND2CMP3B датащи(PDF) 83 Page - ATMEL Corporation

номер детали AT83SND2CMP3B
подробное описание детали  Single-Chip Flash Microcontroller with MP3 Decoder with Full Audio Interface
PDF  241 Pages
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производитель  ATMEL [ATMEL Corporation]
домашняя страница  http://www.atmel.com
Logo ATMEL - ATMEL Corporation

AT83SND2CMP3B датащи(HTML) 83 Page - ATMEL Corporation

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83
4341F–MP3–03/06
AT8xC51SND2C/MP3B
15.1.2
Digital Signals Timing
15.1.2.1
Data Interface
To avoid noises at the output, the reset state is maintained until proper synchronism is achieved
in the DAC serial interface:
•DSEL
•SCLK
DCLK
•DOUT
The data interface allows three different data transfer modes:
Figure 15-3. 20 bit I2S justified mode
Figure 15-4. 20 bit MSB justified mode
Figure 15-5. 20 bit LSB justified mode
The selection between modes is done using the DINTSEL 1:0 in DAC_MISC register (Table 15-
22.) according with the following table:
The data interface always works in slave mode. This means that the DSEL and the DCLK sig-
nals are provided by microcontroller audio data interface.
R1
R0
L(N-1)
L(N-2)
L(N-3)
...
L2
L1
L0
R(N-1)
R(N-2)
R(N-3)
...
R2
R1
R0
SCLK
DSEL
DOUT
R0
L(N-1)
L(N-2)
L(N-3)
...
L2
L1
L0
R(N-1)
R(N-2)
R(N-3)
...
R2
R1
R0
L(N-1)
SCLK
DSEL
DOUT
R0
L(N-1)
L(N-2)
...
L1
L0
R(N-1)
R(N-2)
...
R1
R0
L(N-1)
SCLK
DSEL
DOUT
DINTSEL 1:0
Format
00
I2S Justified
01
MSB Justified
1x
LSB Justified



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