CS8416 Datasheet, PDF (25/48 Pages) Cirrus Logic – 192 kHZ DIGITAL AUDIO INTERFACE RECEIVER

CS8416
8 CONTROL PORT REGISTER BIT DEFINITIONS
8.1 Control0 (00h)
7
6
5
4
3
2
1
0
0
0
0
0
0
TRUNC
Reserved
Reserved
TRUNC – Determines if the audio word length is set according to the incoming channel status data as decoded by
the AUX[3:0] bits. The resulting word length in bits is 24-AUX[3:0].
Default = 0
0 – incoming data is not truncated
1 – incoming data is truncated according to the length specified in the channel status data
Truncation occurs before the de-emphasis filter. TRUNC has no effect on output data if de-emphasis
filter is not used.
Reserved[1:0] – These bits may change state depending on the input audio data.
8.2 Control1 (01h)
7
SWCLK
6
MUTESAO
5
INT1
4
INT0
3
HOLD1
2
HOLD0
1
RMCKF
SWCLK - Lets OMCK determine RMCK, OSCLK, OLRCK when PLL loses lock
Default = ‘0’
0 – Output clocks determined by PLL
1 – Output clocks determined by OMCK
RMCKF – Recovered Master Clock Frequency
Default = “0”
0 – Frequency is 256 FS
1 – Frequency is 128 FS
MUTESAO - Mute control for the serial audio output port
Default = ‘0’
0 - SDOUT (Not Muted)
1 – SDOUT (Muted)
HOLD[1:0] – Determine how received audio sample is affected when a receive error occurs
Default = “00”
00 – hold last audio sample
01 – replace the current audio sample with 00 (mute)
10- do not change the received audio sample
11 - reserved
DS578PP2
0
CHS
25