© Semtech 2005 www.semtech.com
31
XE3005/XE3006
Register J (7:0)
address 0x09
Audio
interface
configuration
Default
value
0x25/
0x24
Description
7 LOOPBACK 0 0: disable loopback, normal mode
1: enable loopback => The CODEC connects internally the
ADC output to DAC input
6 RX_FIRST_
SECOND
0 0: Receive audio data in the first 16-bit channel after the
frame synchronization.
1: Receive audio data in the second 16-bit channel after the
frame synchronization.
5 reserved 1 reserved
4 MASTER 0 1: enable audio interface in master mode (only for LFS)
0: enable audio interface in slave mode (LFS, LFS
Optimization or SFS)
3 SDO_HI_EN 0 0: SDO is continuously in output mode for both data
channels.
1: SDO is in output mode when transmitting a channel with
data (J(2) or J(1)=1).
It is switched automatically into high-impedance state
when a channel with no data is transmitted (J(2) or
J(1)=0).
2 TX_FIRST 1 1: transmit the audio data in the first 16-bit channel after the
frame synchronization.
0: do no transmit data in the first channel.
1 TX_SECOND 0 1: transmit the audio data in the second 16-bit channel after
the frame synchronization.
0: do no transmit data in the second channel.
0 PROTOCOL 0 or 1 1: Short Frame Synchronization mode (slave mode).
0: Long Frame Synchronization mode (master or slave
mode).
The default is depending on the logic value of the pin SCK during startup
(see Section 3.2)
SCK=0, default will be set to 1
SCK=1, default will be set to 0
Register L (7:0)
address 0x0B
Sandman™ function,
off-time,
least significant byte
Default
value 0x00
Description
7:0 SM_OFF_LSB 00000000 Least significant byte of the off-time of
the Sandman™ function
Register M (7:0)
address 0x0C
Sandman™ function,
off-time,
most significant byte
Default
value 0x00
Description
7:0 SM_OFF_MSB 00000000 Most significant byte of the off-time of
the Sandman™ function
Register N (7:0)
address 0x0D
Sandman™ function,
on-time
Default
value 0x00
Description
7:0 SM_ON 00000000 On-time of the Sandman™ function
