AD1812JS 데이터 시트보기 (PDF) - Analog Devices

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AD1812JS

Parallel-Port 16-Bit SoundPort Stereo Codec

Analog Devices 

AD1812

Table III. Codec Transfer 8-Bit Interface (P/CINF8 = 1)*

Format

Mono, 16-Bit

Little Endian

Byte 3

MSB LSB

Upper 8 Bits of

Sample 1

Left Channel

Byte 2

MSB LSB

Lower 8 Bits of

Sample 1

Left Channel

Byte 1

MSB LSB

Upper 8 Bits of

Sample 0

Left Channel

Stereo, 16-Bit

Little Endian

Upper 8 Bits of

Sample 0

Right Channel

Lower 8 Bits of

Sample 0

Right Channel

Upper 8 Bits of

Sample 0

Left Channel

Mono, 8-Bit

Linear PCM

␮-Law PCM

A-Law PCM

Sample 3, 8 Bits

Left Channel

Sample 2, 8 Bits

Left Channel

Sample 1, 8 Bits

Left Channel

Stereo, 8-Bit

Linear PCM

␮-Law PCM

A-Law PCM

Sample 1, 8 Bits

Right Channel

Sample 1, 8 Bits

Left Channel

Sample 0, 8 Bits

Right Channel

Mono, 4-Bit

IMA-ADPCM

Stereo, 4-Bit

IMA-ADPCM

Sample 7,

4 Bits

Left

Channel

Sample 3,

4 Bits

Right

Channel

Sample 6,

4 Bits

Left

Channel

Sample 3,

4 Bits

Left

Channel

Sample 5,

4 Bits

Left

Channel

Sample 2,

4 Bits

Right

Channel

Sample 4,

4 Bits

Left

Channel

Sample 2,

4 Bits

Left

Channel

Sample 3,

4 Bits

Left

Channel

Sample 1,

4 Bits

Right

Channel

Sample 2,

4 Bits

Left

Channel

Sample 1,

4 Bits

Left

Channel

Mono, 16-Bit

Big Endian

Lower 8 Bits of

Sample 1

Left Channel

Upper 8 Bits of

Sample 1

Left Channel

Lower 8 Bits of

Sample 0

Left Channel

Stereo, 16-Bit

Big Endian

Lower 8 Bits of

Sample 0

Right Channel

Upper 8 Bits of

Sample 0

Right Channel

Lower 8 Bits of

Sample 0

Left Channel

*Regardless of the data format used, the AD1812’s codec always transfers 32 bits of data (two 16-bit words).

Byte 0

MSB LSB

Lower 8 Bits of

Sample 0

Left Channel

Lower 8 Bits of

Sample 0

Left Channel

Sample 0, 8 Bits

Left Channel

Sample 0, 8 Bits

Left Channel

Sample 1, Sample 0,

4 Bits

4 Bits

Left

Channel

Sample 0,

4 Bits

Left

Channel

Sample 0,

4 Bits

Right

Channel

Left

Channel

Upper 8 Bits of

Sample 0

Left Channel

Upper 8 Bits of

Sample 0

Left Channel

IOR/IOW

DATA

(7:0)

tBWDN

BYTE 0

BYTE 1

LEFT

SAMPLE

BYTE 2

BYTE 3

RIGHT

SAMPLE

Figure 7. Codec Transfers 8-Bit Interface

–8–

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