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© Cambridge Silicon Radio Limited 2014
CS-310152-UGP1
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4.6.
I²S Initialisation Configuration (PSKEY_USR6)
The application can be configured to drive an external I²S input amplifier. The external amplifier is configured using the I²C bus and relevant commands, these commands can be
configured using a PS Key along with I²S interface settings.
Words 1 to 4
Label
Plug-in
Type
Master or Slave
Operation
Left or Right
Justified I²S
Justified Data
Delay by 1 Bit
Bits per
Sample
USR Data
Key Length
No of init I²C
Commands
No of I²C
Volume
Commands
Volume
Commands
Offset
Type
Uint8
Uint8
Uint4
Uint4
Uint8
Uint8
uint8
Uint8
uint8
Range
0-2
0-1
0-1
0-1
0-255
0- 255
0-255
0- 255
0-255
Default Value
1
1
0
1
16
0
0
0
0
Words 5 to 11
Label
No of I²C
Shutdown
Commands
Shutdown
Commands
Offset
Volume
No of Bits
Volume
Range
Max
Volume
Range
Min
Music
Resampling
Frequency
Voice
Resampling
Frequency
Master Clock Scaling
Factor
Type
uint8
uint8
Uint16
Uint16
Uint16
Uint16
Uint16
Uint16
Range
0-255
0-255
0-65535
0-65535
0-65535
0-65535
0-65535
0-65536
Default Value
0
0
16
15
0
48000
48000
256
