ad1812 Analog Devices, Inc., ad1812 Datasheet - Page 8

• Manufacturer Part Number: ad1812
• Description: Soundport Controller
• Manufacturer: Analog Devices, Inc.

AD1812
Format
Mono, 16-Bit
Little Endian
Stereo, 16-Bit
Little Endian
Mono, 8-Bit
Linear PCM
A-Law PCM
Stereo, 8-Bit
Linear PCM
A-Law PCM
Mono, 4-Bit
IMA-ADPCM
Stereo, 4-Bit
IMA-ADPCM
Mono, 16-Bit
Big Endian
Stereo, 16-Bit
Big Endian
*Regardless of the data format used, the AD1812’s codec always transfers 32 bits of data (two 16-bit words).
-Law PCM
-Law PCM
Sample 7,
Sample 3,
Channel
Channel
4 Bits
4 Bits
Right
Left
MSB
Sample 3, 8 Bits
Sample 1, 8 Bits
Upper 8 Bits of
Upper 8 Bits of
Lower 8 Bits of
Lower 8 Bits of
Right Channel
Right Channel
Right Channel
Left Channel
Left Channel
Left Channel
Sample 1
Sample 0
Sample 1
Sample 0
Byte 3
Sample 6,
Sample 3,
IOR/IOW
Channel
Channel
4 Bits
4 Bits
LSB
DATA
Left
Left
Table III. Codec Transfer 8-Bit Interface (P/CINF8 = 1)*
(7:0)
Figure 7. Codec Transfers 8-Bit Interface
BYTE 0
Sample 5,
Sample 2,
Channel
Channel
4 Bits
4 Bits
Right
Left
SAMPLE
t
MSB
LEFT
Sample 2, 8 Bits
Sample 1, 8 Bits
BWDN
Lower 8 Bits of
Lower 8 Bits of
Upper 8 Bits of
Upper 8 Bits of
Right Channel
Right Channel
Left Channel
Left Channel
Left Channel
Left Channel
Sample 1
Sample 0
Sample 1
Sample 0
Byte 2
BYTE 1
Sample 4,
Sample 2,
Channel
Channel
–8–
4 Bits
4 Bits
LSB
Left
Left
BYTE 2
Sample 3,
Sample 1,
Channel
Channel
4 Bits
4 Bits
Right
Left
SAMPLE
RIGHT
MSB
Sample 1, 8 Bits
Sample 0, 8 Bits
Upper 8 Bits of
Upper 8 Bits of
Lower 8 Bits of
Lower 8 Bits of
Right Channel
Left Channel
Left Channel
Left Channel
Left Channel
Left Channel
Sample 0
Sample 0
Sample 0
Sample 0
Byte 1
BYTE 3
Sample 2,
Sample 1,
Channel
Channel
4 Bits
4 Bits
LSB
Left
Left
Sample 1,
Sample 0,
Channel
Channel
4 Bits
4 Bits
Right
Left
MSB
Sample 0, 8 Bits
Sample 0, 8 Bits
Lower 8 Bits of
Lower 8 Bits of
Upper 8 Bits of
Upper 8 Bits of
Left Channel
Left Channel
Left Channel
Left Channel
Left Channel
Left Channel
Sample 0
Sample 0
Sample 0
Sample 0
Byte 0
Sample 0,
Sample 0,
Channel
Channel
LSB
4 Bits
4 Bits
Left
Left
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