Cirrus Logic CS8415A - Manual (Page 25)

DS470F4 25
CS8415A
8.10 Interrupt 2 Mode MSB (0Dh) and Interrupt 2 Mode LSB (0Eh)
The two Interrupt Mode registers form a 2-bit code for each Interrupt Register 1 function. There are three
ways to set the INT pin active in accordance with the interrupt condition. In the Rising edge active mode,
the INT pin becomes active on the arrival of the interrupt condition. In the Falling edge active mode, the INT
pin becomes active on the removal of the interrupt condition. In Level active mode, the INT interrupt pin be-
comes active during the interrupt condition. Be aware that the active level (Actice High or Low) only depends
on the INT[1:0] bits. These registers default to 00.
00 - Rising edge active
01 - Falling edge active
10 - Level active
11 - Reserved
8.11 Receiver Channel Status (0Fh) (Read Only)
The bits in this register can be associated with either channel A or B of the received data. The desired chan-
nel is selected with the CHS bit of the Channel Status Data Buffer Control Register.
AUX3:0 - Incoming auxiliary data field width, as indicated by the incoming channel status bits, decoded ac-
cording to IEC60958 and AES3.
0000 - Auxiliary data is not present
0001 - Auxiliary data is 1 bit long
0010 - Auxiliary data is 2 bits long
0011 - Auxiliary data is 3 bits long
0100 - Auxiliary data is 4 bits long
0101 - Auxiliary data is 5 bits long
0110 - Auxiliary data is 6 bits long
0111 - Auxiliary data is 7 bits long
1000 - Auxiliary data is 8 bits long
1001 - 1111 Reserved
PRO - Channel status block format indicator
0 - Received channel status block is in consumer format
1 - Received channel status block is in professional format
AUDIO - Audio indicator
0 - Received data is linearly coded PCM audio
1 - Received data is not linearly coded PCM audio
COPY - SCMS copyright indicator
0 - Copyright asserted
1 - Copyright not asserted
If the category code is set to General in the incoming AES3 stream, copyright will always be indicated by
COPY, even when the stream indicates no copyright.
7 6 5 4 3 2 1 0
0 0 0 0 DETU1 0 QCH1 0
0 0 0 0 DETU0 0 QCH0 0
7 6 5 4 3 2 1 0
AUX3 AUX2 AUX1 AUX0 PRO AUDIO COPY ORIG