Table 13. aes format detection, 9 rvcr status (address 08h) (read only) – Cirrus Logic CS42518 User Manual
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DS584F2
CS42518
6.9
RVCR Status (address 08h) (Read Only)
6.9.1
DIGITAL SILENCE DETECTION (DIGITAL SILENCE)
Default = x
0 - Digital Silence not detected
1 - Digital Silence detected
Function:
The CS42518 will auto-detect a digital silence condition when 1548 consecutive zeros have been de-
tected.
6.9.2 AES FORMAT DETECTION (AES FORMATX)
Default = xxx
Function:
The CS42518
will auto-detect the AES format of the incoming S/PDIF stream and display the infor-
mation according to the following table.
6.9.3
SYSTEM CLOCK SELECTION (ACTIVE_CLK)
Default = x
0 - Output of PLL
1 - OMCK
Function:
This bit identifies the source of the internal system clock (MCLK).
7
6
5
4
3
2
1
0
Digital Silence AES Format2 AES Format1 AES Format0
Active_CLK
RVCR_CLK2
RVCR_CLK1
RVCR_CLK0
AES
Format2
AES
Format1
AES
Format0
Description
0
0
0
Linear PCM
0
0
1
DTS
-CD
0
1
0
DTS
-LD
0
1
1
HDCD
1
0
0
IEC 61937
1
0
1
Reserved
1
1
0
Reserved
1
1
1
Reserved
Table 13. AES Format Detection